RISK FACTORS

Investing in our common stock involves a high degree of risk. You should carefully consider the risk factors set forth below as well as the other information contained in this prospectus before investing in our common stock or deciding whether you will or will not participate in this offering. Any of the following risks could materially and adversely affect our business, financial condition, results of operations or cash flows. In such a case, you may lose all or part of your original investment.

Risks Related to Our Business

Our business, financial condition and results of operations or cash flows could be negatively affected by downturns in economic cycles in general or cyclicality in our end markets, both inside and outside of the U.S. Our future growth also depends, to a significant extent, on improvements in general economic conditions and in conditions in our end markets.

Many of our products are used in industries that are, to varying degrees, cyclical and have historically experienced periodic downturns due to factors such as economic conditions, energy prices, the availability of credit, consumer sentiment, demand and other factors beyond our control. These economic and industry downturns have resulted in diminished product demand and excess capacity for our products. The significant deterioration in economic conditions that occurred during the second half of 2008 resulted in disruptions in a number of our end markets, and prospects for improvements in U.S. and global economic conditions as well as in those end markets remain uncertain. Any future economic disruptions may also negatively impact our end markets or the consumers served by those end markets, which would adversely affect our operating results.

Future disruptions in the commercial credit markets may impact liquidity in the global credit market as greatly as, or even more than, in recent years, and we are not able to predict the impact any such worsening conditions would have on our customers in general, and our results of operations specifically. Businesses in one or more of the end markets that we serve, or consumers in one or more of the end markets that our customers serve, may postpone or choose not to make purchases in response to economic uncertainty, tighter credit, negative financial news, unemployment, interest rates, adverse consumer sentiment and declines in housing prices or other asset values.

In particular, the historically cyclical and volatile building and housing sector in the U.S. has not yet recovered from the downturn that began in 2007. If the housing, remodeling and residential and commercial construction markets continue to stagnate or deteriorate further, demand from such markets for our products, especially our brass rod products, is expected to continue to be adversely affected.

Similarly, the automotive end market has experienced significant downturns in connection with, or in anticipation of, declines in general economic conditions. Demand for vehicles depends largely on the strength of the economy, employment levels, consumer confidence levels, the availability and cost of credit and the cost of fuel. Further negative economic developments could reduce demand for new vehicles, causing our customers to reduce their vehicle and automotive component part production in North America.

The coinage and general consumer end markets are also affected by economic cycles. Demand for coinage-related products generally increases with the number of cash transactions that occur, and the number of cash transactions generally increases during periods of economic growth. Demand for consumer goods is also very sensitive to economic conditions and drives demand in our electronics/electrical components end market.

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As a result, cyclicality in economic conditions and in the end markets that we serve could have a material adverse effect on our business, financial condition, results of operations and cash flows. Our growth prospects also depend, to a significant extent, on the degree by which general economic conditions and conditions in the end markets that we serve improve in the future.

Failure to maintain our balanced book approach would cause increased volatility in our profitability and our operating results and may result in significant losses.

Copper scrap and cathode are subject to significant cyclical price fluctuations. The availability and price of copper scrap and cathode depend on a number of factors outside our control, including general economic conditions, international demand for metal and internal recycling activities by primary copper producers and other consumers of copper. The cost of copper scrap and cathode represents the largest component of our cost of sales.

We use our balanced book approach to substantially reduce the impact of metal price movements on operating margins from our non-toll sales, which are sales for which we assume responsibility for metal procurement and then recover the metal replacement cost from the customer. Non-toll sales represented 81.8% of our net sales during the year ended December 31, 2010. Under our balanced book approach, we seek to match the timing, quantity and price of the metal component of net sales with the timing, quantity and price of replacement metal purchases on all of our non-toll sales. We use a combination of matching price date of shipment terms, firm price terms and derivatives transactions to achieve our balanced book. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Key Factors Affecting Our Results of Operations—Balanced Book”.

We may not be able to maintain our balanced book if our customers become unwilling to bear metal price risk through the matching of price date of shipment terms. We may also not be able to find counterparties for the derivatives transactions entered into in connection with firm price terms, and the cost of those derivatives transactions may increase such that entering into such transactions is no longer cost-effective to us. Those risks may increase during periods of very high copper prices or increased volatility in those prices.

If we fail to effectively maintain our balanced book, our profitability will be significantly affected by fluctuations in metal costs and our ability to recoup metal costs through product pricing. As a result, the volatility of our results of operations would increase dramatically. Furthermore, if we are unable to maintain our balanced book approach, we will potentially replace metal at a different price than the price recovered from the customer, generating a loss in circumstances where the replacement price is higher than the price recovered from the customer.

Although we maintain our balanced book approach, metal costs still affect our profitability through “shrinkage”.

Shrinkage loss, which is primarily the loss of raw metal that occurs between the casting furnace and rolling operations, is an inherent part of a metal fabrication and conversion business. Despite our use of our balanced book approach to mitigate the impact of metal price fluctuations, we must bear the cost of any shrinkage during production, which may increase the volatility of our results of operations. Because we process a large amount of metal in our operations, a small increase in our shrinkage rates can have a significant effect on our margins and profitability. In addition, if metal prices increase, the same amount of shrinkage will have a greater effect on our manufacturing costs and have a more significant negative impact on our margins and profitability.

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Because our balanced book approach does not reduce the effects of fluctuations in metal prices on our working capital requirements, higher metal prices could have a negative effect on our liquidity.

Our balanced book approach does not reduce the impact of the volatility in metal prices on our working capital requirements. Metal prices impact our investment in working capital because our collection terms with our customers are longer than our payment terms to our suppliers. In 2010, the spread between our receivable collection cycle and purchase payment cycle was approximately 20 days. As a result, when metal prices are rising, even if the number of pounds of metal we process does not change, we tend to use more cash or draw more on the ABL Facility to cover the cash flow delay from material replacement purchase to cash collection. Thus, when metal prices increase, our working capital may be negatively affected as we are required to draw more on our cash or available financing sources to pay for raw materials. As a result, our liquidity may be negatively affected by increasing metal prices. Metal price volatility may also require us to draw on working capital sources more quickly and unpredictably, and therefore at higher cost. See “Management’s Discussion and Analysis of Operating Results and Financial Condition—Key Factors Affecting Our Results of Operations—Metal Cost”.

Limited access to raw materials or fuel could negatively affect our business, financial condition or results of operations or cash flows.

Our ability to fulfill our customer orders in a timely and cost-effective manner depends on our ability to secure a sufficient and constant supply of raw materials and fuel. Although we often seek to source our copper from scrap, including internally generated scrap and repurchases of our customers’ scrap, where scrap is either not available or is not appropriate for use, we use virgin raw materials such as copper cathode, which are generally more expensive than scrap. We depend on natural gas for our manufacturing operations and source natural gas through open-market purchases.

We depend on scrap for our operations and acquire our scrap inventory from numerous sources. These suppliers generally are not bound by long-term contracts and have no obligation to sell scrap metals to us. In periods of low metal prices, suppliers may elect to hold scrap waiting for higher prices. In addition, the slowdown in industrial production and consumer consumption in the U.S. during the current economic crisis has reduced, and is expected to continue to reduce, the supply of scrap metal available to us, and the scrap supply may be subject to the activities of speculators. If an adequate supply of scrap metal is not available to us, we would be unable to recycle metals at desired volumes, forcing us to use a larger amount of more expensive virgin raw materials and our results of operations and financial condition would be materially and adversely affected. Furthermore, with the rapid growth of the economy of China, the demand for certain raw materials has increased significantly while the supply of such raw materials may not have increased correspondingly. This may affect our ability to secure the necessary raw materials in a cost-effective manner for production of our products.

We may experience disruptions in the supply of natural gas as a result of delivery curtailments to industrial customers due to extremely cold weather. We may also experience other delays or shortages in the supply of raw materials. If we are unable to obtain adequate, cost efficient or timely deliveries of required raw materials and fuel, we may be unable to manufacture sufficient quantities of products on a timely basis. This could cause us to lose sales, incur additional costs, delay new product introductions or harm our reputation in the end markets that we serve. In addition, our ability to find metal is dependent on an adequate and timely supply of raw materials. An inability to find an adequate and timely supply of raw materials could have a material adverse effect on our profit margin, and in turn on our business, financial condition, results of operations or cash flows.

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Increases in the cost of energy could cause our cost of sales to increase, thereby reducing operating results and limiting our operating flexibility.

In 2010, the cost of energy and utilities represented approximately 8% of our non-metal cost of sales. The prices of natural gas and electricity can be particularly volatile. As a result, our natural gas and electricity costs may fluctuate dramatically, and we may not be able to mitigate the effect of higher natural gas and electricity costs on our cost of sales. A substantial increase in energy costs could cause our operating costs to increase and our business, financial condition, results of operations and cash flows may be materially and adversely affected. Although we attempt to mitigate short-term volatility in natural gas and electricity costs through the use of derivatives contracts, we may not be able to eliminate the long-term effects of such cost volatility. Furthermore, in an effort to offset the effect of increasing costs, we may have also limited our potential benefit from declining costs.

Our substantial leverage and debt service obligations may adversely affect our financial condition and restrict our operating flexibility, including our ability to raise additional capital to fund our operations, limit our ability to react to changes in the economy or our industry and prevent us from meeting our obligations under our indebtedness.

We are highly leveraged. As of September 30, 2011, our total indebtedness was $311.7 million. We also had an additional $137.0 million available for borrowing under the ABL Facility as of that date. Based on the amount of indebtedness outstanding and applicable interest rates at September 30, 2011, our annualized cash interest expense would be $32.0 million, all of which represents interest expense on floating-rate obligations (and thus is subject to increase in the event interest rates were to rise), prior to any consideration of the impact of interest rate derivative contracts.

Our substantial indebtedness and debt service obligations could have important consequences for investors, including:

Any of these consequences could have a material adverse effect on our business, financial condition, results of operations, prospects and ability to satisfy our obligations under our indebtedness. In addition, there would be a material adverse effect on our business, financial condition, results of operations and cash flows if we were unable to service our indebtedness or obtain additional financing, as needed.

Covenants under our debt agreements impose significant operating and financial restrictions. Failure to comply with these covenants could have a material adverse effect on our business, financial condition, results of operations or cash flows.

The agreements governing the ABL Facility and the Term Loan Facility contain various covenants that limit or prohibit our ability, among other things, to:

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The agreement governing the Term Loan Facility contains financial covenants that require us to maintain an interest coverage ratio and a leverage ratio, as defined in such agreement, within specified levels as of the end of each fiscal quarter, beginning with the three months ended December 31, 2010. Previously, we have had to obtain waivers for defaults of the agreements governing the ABL Facility and the Term Loan Facility. If we had not obtained such waivers, the lenders under those facilities would have been able to accelerate the indebtedness under those agreements. For additional details regarding the waivers, see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Outstanding Indebtedness—The ABL Facility”. In October 2011, we sought and obtained an amendment to our interest coverage ratio covenant to make the covenant less difficult for us to meet. In addition, under the agreement governing the Term Loan Facility, we are prohibited from making consolidated capital expenditures in excess of $30.0 million during any fiscal year (subject to certain adjustments and carryover provisions) starting with the fiscal year ended December 31, 2010. Furthermore, the agreement governing the Term Loan Facility includes a mandatory prepayment from excess cash flow commencing with the results of the year ending December 31, 2011. For more information regarding these covenants, please see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Liquidity and Capital Resources—Covenant Compliance” and “Description of Certain Indebtedness—Term Loan Facility”.

The agreement governing the ABL Facility also contains a financial covenant that requires us to maintain a fixed charge coverage ratio that is tested whenever excess availability, as defined in such agreement, falls below a certain level. The fixed charge coverage ratio, as defined in the agreement, requires us to maintain a minimum ratio of “EBITDA” (as defined in the agreement governing the ABL Facility) to the amount of our fixed charges for the twelve consecutive months prior to the date on which the ratio is tested. The agreement governing the ABL Facility also requires excess availability to remain above a certain level to avoid default. For more information regarding these covenants, please see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Liquidity and Capital Resources—Covenant Compliance” and “Description of Certain Indebtedness—ABL Facility”.

As of September 30, 2011, we were in compliance with all of the covenants contained in our debt agreements. A violation of covenants may result in default or an event of default under our debt agreements. Upon the occurrence of an event of default under the ABL Facility or the Term Loan Facility, the requisite lenders under the applicable facility could elect to declare all amounts outstanding under such facility to be immediately due and payable and, in the case of the ABL Facility, terminate any commitments to extend further credit. If we are unable to repay those amounts, the lenders under such facilities may proceed against the collateral granted to them to secure such facilities. Substantially all of our assets are pledged as collateral under the ABL Facility and the Term Loan Facility. If the lenders under such facilities accelerate the repayment of borrowings, such acceleration would have a material adverse effect on our business, financial condition, results of operations or cash flows.

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Furthermore, cross-default provisions in the credit agreements mean that any default under one agreement could trigger a cross-default under the other credit agreement. If we are unable to repay the amounts outstanding under such facilities or obtain replacement financing on acceptable terms, which ability will depend in part upon the impact of economic conditions on the liquidity of credit markets, the lenders may exercise their rights and remedies against us and the assets that serve as collateral for the debt, including initiating a bankruptcy proceeding.

Although the terms of our credit agreements contain restrictions on our ability to incur additional indebtedness, these restrictions are subject to a number of important qualifications and exceptions, which would allow us to borrow additional indebtedness. Additional leverage could have a material adverse effect on our business, financial condition and results of operations and could increase other risks harmful to our financial condition and results of operations and could increase the risks described in “—Our substantial leverage and debt service obligations may adversely affect our financial condition and restrict our operating flexibility, including our ability to raise additional capital to fund our operations, limit our ability to react to changes in the economy or our industry and prevent us from meeting our obligations under our indebtedness”.

For a more detailed description on the limitations on our ability to incur additional indebtedness and our compliance with financial covenants, please see “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Liquidity and Capital Resources—Covenant Compliance” and “Description of Certain Indebtedness”.

To service our indebtedness, we will require a significant amount of cash. Our ability to generate cash and the availability of our cash to service our indebtedness depends on many factors beyond our control, and any failure to meet our debt service obligations could harm our business, financial condition and results of operations.

Our ability to satisfy our debt obligations will primarily depend upon our future operating performance. As a result, prevailing economic conditions and financial, business and other factors, many of which are beyond our control, will affect our ability to generate cash to satisfy our debt obligations. Included in such factors are the requirements, under certain scenarios, of our counterparties that we post cash collateral to maintain our hedging positions. In addition, metal price declines, by reducing our borrowing base, could limit availability under the ABL Facility and further constrain our liquidity.

If we do not generate sufficient cash flow from operations to satisfy our debt service obligations, including payments required to be made on the ABL Facility and the Term Loan Facility, we may have to undertake alternative financing plans, such as refinancing or restructuring our indebtedness, selling assets, reducing or delaying capital investments or seeking to raise additional capital. Our ability to restructure or refinance our indebtedness will depend on the condition of the capital markets and our financial condition at such time. Any refinancing of our indebtedness could be at higher interest rates and may require us to comply with more onerous covenants, which could further restrict our business operations. The terms of existing or future debt instruments (including the ABL Facility and Term Loan Facility) may restrict us from adopting some of these alternatives, which in turn could exacerbate the effects of any failure to generate sufficient cash flow to satisfy our debt service obligations. In addition, any failure to make payments of interest and principal on our outstanding indebtedness on a timely basis would likely result in a reduction of our credit ratings, which could harm our ability to incur additional indebtedness or refinance our indebtedness on acceptable terms.

Our inability to generate sufficient cash flow to satisfy our debt service obligations, or to refinance our obligations at all or on commercially reasonable terms, would have an adverse effect, which could be material, on our business, financial condition and results of operations, may restrict our current and future operations, particularly our ability to respond to business changes or to take certain actions, as well as on our ability to satisfy our obligations in respect of the ABL Facility and the Term Loan Facility.

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Because all of our indebtedness bears interest at rates that fluctuate with changes in certain prevailing short-term interest rates, we are vulnerable to interest rate increases.

As of September 30, 2011, all of our outstanding debt bore interest at rates that fluctuate with changes in certain short-term prevailing interest rates. As of September 30, 2011, we had $2 thousand of outstanding advances on the ABL Facility and $311.7 million outstanding under the Term Loan Facility, all of which bears interest at floating rates, $300.0 million of which is subject to various derivative contracts to manage the interest rate risk. Assuming a consistent level of debt, a 100 basis point change in the interest rate on the indebtedness under our Term Loan Facility and ABL Facility would have increased or decreased the annual interest payments required to be made by us under the Term Loan Facility and the ABL Facility by $3.1 million. We use derivative financial instruments, mainly interest rate caps, to manage a portion of the potential impact of our interest rate risk. To some extent, derivative financial instruments can protect against increases in interest rates, but they do not provide complete protection over the long term. If interest rates increase dramatically, we could be unable to service our debt, which could have a material adverse effect on our business, financial condition, results of operations or cash flows.

If we were to lose order volumes from any of our largest customers, our sales volumes, revenues and cash flows could be reduced.

Our business is exposed to risks related to customer concentration. Our five largest customers were responsible for 18.3% of our net sales for the year ended December 31, 2010. No one customer accounted for more than 5% of those net sales. A loss of order volumes from, or a loss of industry share by, any major customer could negatively affect our business, financial condition or results of operations by lowering sales volumes, increasing costs and lowering profitability. In addition, during the economic downturn since 2008, three of our approximately 1,850 customers have become involved in bankruptcy or insolvency proceedings and have defaulted on their obligations to us. Our balance sheet reflected an allowance for doubtful accounts totaling $7.5 million at December 31, 2009 and $7.9 million at December 31, 2010. Similar incidents in the future could materially and adversely affect our financial condition and results of operations.

We do not have long-term contractual arrangements with a substantial number of our customers, and our sales volumes and net sales could be reduced if our customers switch some or all of their business with us to other suppliers.

During the fiscal year ended December 31, 2010, a majority of our net sales were generated from customers who do not have long-term contractual arrangements with us. These customers purchase products and services from us on a purchase order basis and may choose not to continue to purchase our products and services. A significant loss of these customers or a significant reduction in their purchase orders could have a material negative impact on our sales volume and business, or cause us to reduce our prices, which could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Our business could be disrupted if our customers shift their manufacturing offshore.

Much of our business depends on maintaining close geographical proximity to our customers because the costs of transporting metals across large distances can be prohibitive. If the general trend in relocating manufacturing capacity to foreign countries continues, especially those in the automotive parts industry, such relocations may disrupt or end our relationships with some customers and could lead to losing business to foreign competitors. These risks would increase to the extent we are unable to expand internationally when our customers do so.

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The loss of our contract with the United States Mint, or decreased demand from the United States Mint, could have a material adverse effect on our business, financial condition and results of operations.

The United States Mint is a significant customer of Olin Brass. Olin Brass has a contractual arrangement to supply nickel and brass coinage strip to multiple United States Mint locations. Our supply agreement with the United States Mint runs through 2012. The United States Mint can also terminate the contract in whole or in part for convenience, and the damages payable to us by the United States Mint for such a termination do not include lost profits. The loss or reduction of any authorized supplier arrangement with the United States Mint for coin manufacture could have a material adverse effect on our business, financial condition and results of operations. In addition, the United States Government contracting and procurement cycle can be affected by the timing of, and delays in, the legislative process. As a result, our net sales and operating income may fluctuate, causing us to occasionally experience declines in net sales or earnings as compared to the immediately preceding quarter, and comparisons of our operating results on a period-to-period basis may not be meaningful. Further, it is uncertain whether the COINS Act will be adopted, and if it would be adopted, when and how it would be implemented. As a result, even if the COINS Act is adopted, we may not benefit if its implementation is delayed or if our contract with the United States Mint is not renewed. Additionally, the U.S. Treasury department announced in December 2011 a halt in the production of Presidential $1 coins for circulation due to a lack of demand (which is primarily the result of the U.S. continuing the use of the dollar bill). Although their production will continue for the collectibles market, it is uncertain when their production for circulation will be resumed. This action is expected to adversely impact our business over the next several years and further actions to curtail coin production could have an adverse effect on our business, financial condition or results of operations.

Following trends in electronic commerce, the United States Mint in the future may reduce its output of coinage and thus reduce its demand for coinage strip. A reduction in demand for coinage strip could have a material adverse effect on our business, financial condition and results of operations.

The loss of our munitions products contract with Alliant Techsystems (“ATK”), or decreased demand from ATK, could have a material adverse effect on our business, financial condition and results of operations.

Currently, a sizeable share of our Olin Brass segment’s production supports ATK, a supplier of munitions to the U.S. Army. ATK uses our product to service its contract with the U.S. Army to supply the U.S. Army’s arsenal located at Independence, Missouri. ATK is under contract with the U.S. Army to supply small-caliber ammunition, and Olin Brass is under contract to supply ATK through September 2013.

The U.S. Army is in the process of soliciting bids for management of the U.S. Army arsenal located at Independence, Missouri and a determination of the successful bidder is anticipated in September 2012. We have no ability to control or influence the U.S. Army’s decision to renew its supply contract with ATK. If ATK fails to renew its contract with the U.S. Army, and Olin Brass does not supply the contractor that is eventually selected by the U.S. Army, Olin Brass’s sales volume of cup and strip could be materially reduced. The reduction in cup and strip sales resulting from the failure to renew our contract with ATK, or ATK’s failure to renew its contract with the U.S. Army, could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Competition in our industry could adversely affect our business, financial condition and results of operations.

We are engaged in a highly competitive industry. Each of our segments competes with a selected number of companies. The Olin Brass segment competes with domestic and foreign manufacturers of copper and brass alloys in the form of strip, sheet, foil and plate, the Chase Brass segment competes

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with domestic as well as foreign manufacturers of brass rod, and the A.J. Oster segment primarily competes with distributors, mills and processors of copper and brass products. In particular, we believe that domestic sales to customers that are not made by major companies, including us, are fragmented among many smaller companies. In the future, these smaller companies may choose to combine, creating a more significant domestic competitor against our business. We may be required to explore additional initiatives in each of our segments in order to maintain our sales volume at a competitive level. Increased competition in any of the fields in which our segments operate could adversely affect our business, financial condition and results of operations.

Competition from foreign manufacturers will increase if current anti-dumping orders expire and our sales volumes and profit margins could be adversely affected.

Currently, anti-dumping orders impose import duties on copper and brass products from France, Germany, Italy and Japan, which allows us and our domestic competitors to compete more fairly against French, German, Italian and Japanese producers in the U.S. copper and brass product market. While domestic manufacturers are lobbying for the extension of these orders, if they expire, import duties on metal products from these countries will be significantly reduced, increasing the ability of such foreign producers to compete with our products domestically. The increased competition could adversely affect our business, financial condition and results of operations.

Adverse developments in our relationship with our employees could have a material adverse effect on our business, financial condition, results of operations and cash flows.

As of September 30, 2011, we had approximately 1,900 employees, approximately 1,075, or 57%, of whom at various sites were members of unions. We have generally maintained good relationships with all unions and employees, which has been an important aspect of our ability to be competitive in our industry. There are nine unions representing employees in the Olin Brass segment (eight representing employees at the East Alton, Illinois facility and one representing employees of Bryan Metals, LLC), two representing employees of the A.J. Oster segment (one representing employees of A.J. Oster Foils, LLC and another representing employees of A.J.O. Global Services Mexico S.A. de C.V.) and one representing employees of the Chase Brass segment. The collective bargaining agreement with the eight unions that represent employees at the East Alton facility of Olin Brass expires in November 2013. The collective bargaining agreement covering union-represented employees of Chase Brass expires in June 2013, and the collective bargaining agreement covering union-represented employees of A.J. Oster Foils expires in January 2014. The collective bargaining agreement covering union-represented employees of A.J.O. Global Services Mexico S.A. de C.V. has an indeterminate term, with a review of wages every year and a review of benefits every other year. The collective bargaining agreement with the union-represented employees of Bryan Metals, LLC is effective through September 30, 2014. The current collective bargaining agreements that are in place are a meaningful determinant of our labor costs and are very important to our ability to maintain flexibility to fulfill our customers’ needs. As we attempt to renew our collective bargaining agreements, labor negotiations may not conclude successfully and, in that case, may result in a significant increase in the cost of labor or may result in work stoppages or labor disturbances, disrupting our operations. Any such cost increases, stoppages or disturbances could have a material adverse effect on our business, financial condition, results of operations and cash flows by limiting plant production, sales volumes and profitability. See “Business—Employees” for a discussion of our collective bargaining agreements.

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Our operations are subject to risks of natural disasters, acts of war, terrorism or widespread illness at our domestic and international locations, any one of which could result in a business stoppage and negatively affect our business, financial condition or results of operations.

Our business operations depend on our ability to maintain and protect our facilities, computer systems and personnel. Our facilities and transportation for our employees are susceptible to damage from earthquakes and other natural disasters such as fires, floods, hurricanes, tornadoes and similar events. We have facilities located throughout North America, including in Illinois, Ohio, Connecticut, Rhode Island, Missouri, California, Puerto Rico, Mexico, China and Japan. We take precautions to safeguard our facilities, including obtaining insurance and maintaining health and safety protocols. However, a natural disaster, such as a tornado, fire, flood, hurricane or earthquake, could cause a substantial interruption in our operations, damage or destroy our facilities or inventory and cause us to incur additional expenses. The insurance we maintain against natural disasters may not be adequate to cover our losses in any particular case, which would require us to expend significant resources to replace any destroyed assets, thereby harming our financial condition and prospects significantly.

For example, Olin Brass’s manufacturing facilities and A.J. Oster’s California facility are located near geologic fault zones, and therefore are subject to greater risk of earthquakes which could result in increased costs and a disruption in our operations, which could harm our operating results and financial condition significantly. Our facility in East Alton, Illinois is located in a flood zone, and all of our facilities in the Midwestern United States are subject to the risk of tornadoes and damaging winds. Should earthquakes or other catastrophes, such as fires, tornadoes, hurricanes, floods, power outages, communication failures or similar events disable our facilities, we do not have readily available alternative facilities from which we could continue our operations, and any resulting stoppage could have a negative effect on our operating results. Acts of terrorism, widespread illness and war could also have a negative effect at our international and domestic facilities.

Any prolonged disruptions at or failures of our manufacturing facilities and equipment could have a material adverse effect on our business, financial condition, results of operations and cash flows.

Our ability to satisfy our customers’ orders in an efficient manner and to effectively manage inventory levels is dependent on the proper operation of our facilities and equipment. On-time delivery and accurate order fulfillment are essential to maintaining customer satisfaction and generating repeat business. To the extent we experience prolonged equipment failures, quality control incidents or other disruptions such as a major fire at our manufacturing facilities, our ability to satisfy our customers could be negatively impacted, and if, as a result, customer satisfaction decreased, this would have a material adverse effect on our business, financial condition, results of operations and cash flows.

In addition, we do not have redundancy in our operations on certain critical pieces of equipment, including the Olin Brass hot and cold mills and Chase Brass extruders. If this equipment were damaged, we would have to make alternative arrangements to replicate these processes, which could be costly and result in manufacturing delays, which could materially adversely affect our business, financial condition and results of operations.

Failure to meet the capital expenditure requirements for the introduction of new products or substantial further increases in the production of existing products could have a material adverse effect on our business, financial condition and results of operations.

Certain of our existing products, such as Eco Brass ^® and other “green portfolio” products, require separate production facilities from those used for our other products in order to comply with applicable standards. As a result, in order to meet expected increased demand for such products, we will be

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required to make additional capital expenditures to modify or expand our facilities. In addition, if we introduce new products in the future, those products may also require modification or expansion of our production facilities. To accommodate any such production changes, we will be required to make additional capital expenditures to expand or modify our facilities. Under the agreement governing the Term Loan Facility, we are prohibited from making consolidated capital expenditures in excess of $30.0 million during any fiscal year (subject to certain adjustments and carryover provisions) starting with the fiscal year ended December 31, 2010. If we are unable to meet our capital expenditure requirements, we may not be able to timely respond to our customers’ needs and may lose their business to our competitors who may be better equipped to meet these needs, which could have a material adverse effect on our business, financial condition and results of operations.

The increased use of substitute materials and miniaturization may adversely affect our business.

In many applications, copper and other commodities may be replaced by other materials such as aluminum, stainless steel, plastic and other materials and the use of copper and other commodities may be reduced by the miniaturization of components. Increased prices of copper could encourage our customers to use substitute materials and/or miniaturization to limit the amount of copper in their products and applications in an attempt to control their overall product costs. For example, historically, there has been discussion over reducing or eliminating copper content in coins in reaction to the rising prices of copper. Such increased use of substitute materials and/or miniaturization could have a material adverse effect on prices and demand for our products.

In order to operate our business successfully, we must meet evolving customer requirements for copper and copper-alloy products and invest in the development of new products.

If we fail to develop or enhance our products to satisfy evolving customer demands, our business, operating results, financial condition and prospects may be harmed significantly. The market for copper and copper-alloy products is characterized by changing technologies, periodic new product introductions and evolving customer and industry standards. Eco Brass ^® and other products in our “green portfolio” are examples of new products based on new technologies that have been developed as a result of evolving customer and industry standards. Our competitors are continuously searching for more cost-effective alloys and substitutes for copper and copper-alloys, including products in our “green portfolio”. Our current and prospective customers may choose products that might be offered at a lower price than our products. To achieve market acceptance for our products, we must effectively and timely anticipate and adapt to customer requirements and offer products and services that meet customer demands. This strategy may cause us to pursue other technologies or capabilities through acquisitions or strategic alliances. We may experience design, engineering and other difficulties that could delay or prevent the development, introduction or marketing of new products and services. Our failure to successfully develop and offer products or services that satisfy customer requirements may significantly weaken demand for our products and services, which would likely cause a decrease in our net sales and harm our operating results. In addition, if our competitors introduce products and/or services based on new or alternative technologies, our existing and future products and/or services could become obsolete, which would also weaken demand for our products or services, thereby decreasing our net sales and harming our operating results.

If we fail to implement our business strategy, including our growth initiatives, our business, financial condition, results of operations or cash flows could be adversely affected.

Our future financial performance and success depend in large part on our ability to successfully implement our business strategy. We may not be able to successfully implement our business strategy or be able to continue improving our operating results. In particular, we may not be able to continue to

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achieve all operating cost savings, further enhance our product mix, expand into selected targeted regions or continue to mitigate our exposure to metal price fluctuations.

The implementation of our business strategy may be affected by a number of factors beyond our control, such as increased competition, legal and regulatory developments, general economic conditions, the increase of operating costs or our ability to introduce new products and end-use applications. Any failure to successfully implement our business strategy could adversely affect our business, financial condition, results of operations or cash flows. We may, in addition, decide to alter or discontinue certain aspects of our business strategy at any time.

Furthermore, we may not be successful in our growth initiatives and may not be able to effectively manage expanded or acquired operations. See “—We face a number of risks related to future acquisitions and joint ventures”.

A portion of our net sales is derived from our international operations, which exposes us to certain risks inherent in doing business abroad.

In the aggregate, our international operations accounted for 6% of our net sales in 2010. We have operations in China through Olin Luotong Metals (GZ) Corporation (“Olin Luotong Metals”), an 80%-owned joint venture with Chinalco Luoyang Copper Co. Ltd. (“Chinalco”) in Singapore through our subsidiary, GBC Metals Asia Pacific PTE, and in Japan through our 50/50 joint venture with Dowa Holdings Co. Ltd (“Dowa”). We also have distribution arrangements in the United Kingdom and Germany. In addition, we have various licensing agreements around the world and our products are distributed globally. We plan to continue to explore opportunities to expand our international operations. Our international operations generally are subject to risks, including:

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The occurrence of any of these events could cause our costs to rise, limit growth opportunities or have a negative effect on our operations and our ability to plan for future periods, and subject us to risks not generally prevalent in North America.

New governmental regulations or legislation, or changes in existing regulations or legislation, may subject us to significant costs, taxes and restrictions on our operations.

Our operations are subject to a wide variety of U.S. Federal, state, local and non-U.S. laws and regulations, including those relating to taxation, international trade and competition and firearms.

For example, the Olin Brass segment provides strip and cups to both the military and commercial munitions markets. In the fiscal year ended December 31, 2010, the shipments by Olin Brass to the munitions end market accounted for 40.7% of its total shipments. The private use of firearms is subject to extensive regulation. Recent U.S. Federal legislative activities generally seek either to restrict or ban the sale and, in some cases, the ownership of various types of firearms. Several states currently have laws in effect similar to that legislation. Any restriction on the use of firearms could affect the demand for munitions, and in turn could negatively affect our business, financial condition or results of operations. Moreover, any changes in the government budget or policy over military spending may adversely affect our contracts with customers in the munitions end market.

The cost of our inventories is primarily determined using the last-in, first-out (“LIFO”) method. Under the LIFO inventory valuation method, changes in the cost of raw materials and production activities are recognized in cost of sales in the current period. Generally in a period of rising prices, LIFO recognizes higher costs of goods sold, which both reduces current income and assigns a lower value to the year-end inventory. The Department of the Treasury’s “General Explanations of the Administration’s Fiscal Year 2012 Revenue Proposals” contains a proposal to repeal the election to use the LIFO method for U.S. Federal income tax purposes. According to the proposal, taxpayers that currently use the LIFO method would be required to revalue their beginning LIFO inventory to its first-in, first-out (“FIFO”) value in the first taxable year beginning after December 31, 2012. As of September 30, 2011, if the FIFO method had been used instead of the LIFO method, our inventories would have been $205.4 million higher than the value reflected in our September 30, 2011 balance sheet. This increase in the carrying value of inventory would result in a one-time increase in taxable income of $131.2 million after taking into consideration total current differences in book-to-tax valuations of inventory, which would be taken into account ratably over ten years, beginning with the first taxable year beginning after December 31, 2012. The repeal of the election to use the LIFO method could result in a substantial cash tax liability, which could adversely impact our liquidity and financial condition. Furthermore, a transition to the FIFO method could result in an increase in the volatility of our earnings, a greater disparity between our earnings and net sales in our financial statements, and an increase in the costs associated with our derivative transactions to mitigate metal price fluctuations.

In addition, any termination or expiration of trade restrictions imposed on copper products by foreign governments could adversely affect our business as such products become freely tradable into the U.S. This may increase competition against our products and adversely affect our business, financial condition or results of operations. See “—Competition from foreign manufacturers will increase if current anti-dumping orders expire and our sales volumes and profit margins could be adversely affected”.

We may not be able to sustain the annual cost savings realized as part of our recent cost- reduction initiatives.

Since our formation in 2007, we have undertaken, and will continue to undertake, productivity and cost-reduction initiatives intended to improve performance and improve operating cash flow. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Financial

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Information, Acquisition, Business Transformation and Refinancing”. Although we believe that the cost savings we have realized through our efforts so far are permanent reductions, we may not be able to sustain some or all of these cost savings on an annual basis in the future, which could have an adverse effect on our business, financial condition, results of operations and cash flows. Moreover, there can be no assurance that any new initiatives undertaken in the future will be completed or beneficial to us or that any estimated cost savings from such activities will be realized.

Our operations expose our employees to risk of injury or death. We may be subject to claims that are not covered by, or exceed, our insurance. Additional safety measures or rules imposed by regulatory agencies may reduce productivity, require additional capital expenditure or reduce profitability.

Because of the manufacturing activities conducted at our facilities, there exists a risk of injury or death to our employees or other visitors, notwithstanding the safety precautions we take. Our operations are subject to regulation by Federal, state and local agencies responsible for employee health and safety, including the Occupational Safety and Health Administration, which has from time to time taken various actions with respect to our facilities, including imposing fines for certain isolated incidents. Despite policies and standards that are designed to minimize such risks, we may nevertheless be unable to avoid material liabilities for any employee death or injury that may occur in the future. These types of incidents may not be covered by or may exceed our insurance coverage and may have a material adverse effect on our results of operations and financial condition.

In addition, various regulatory agencies may impose additional safety measures or other rules designed to increase workplace safety. Compliance with such requirements could require additional capital expenditure or cause process changes that could reduce the productivity of the affected facilities, which could increase our costs and reduce our profitability.

Our ability to retain our senior management team is critical to the success of our business, and failure to do so could materially adversely affect our business, financial condition, results of operations and cash flows.

We are dependent on our senior management team to remain competitive in our industry. We have employment contracts or severance agreements with members of our senior management team, including John Walker, Robert Micchelli, John Wasz, Devin Denner and Daniel Becker. Failure to renew the employment contracts or other agreements of a significant portion of our senior management team could have a material adverse effect on our business, financial condition, results of operations and cash flows. Members of our senior management team are subject to employment conditions or arrangements that permit the employees to terminate their employment without notice. See “Compensation Discussion and Analysis—Employment Arrangements with Named Executive Officers”. We do not maintain any life insurance policies for our benefit covering our key employees.

If our senior management team were not able to dedicate adequate time to our business, due to personal or other factors, if we lose or suffer an extended interruption in the services of a significant portion of our senior management team, or if a significant portion of our senior management team were to terminate employment within a short period it could have a material adverse effect on our business, financial condition, results of operations and cash flows. In addition, the market for qualified individuals may be highly competitive and we may not be able to attract and retain qualified personnel to replace or succeed members of our senior management team, should the need arise.

Rising employee medical costs may adversely affect operating results.

The potential of rising employee medical costs are difficult to assess at this time. During the year ended December 31, 2010, our expenses related to employee health benefits were an aggregate of $15.3 million. Because the implementation of various laws regarding employee medical costs and

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health insurance, including the Patient Protection and Affordable Care Act of 2010 and other related regulations, is currently in progress, there is significant uncertainty as to how these current and future laws and regulations will affect our employee medical and other benefit costs. Therefore, we may incur significant increases in these costs that could reduce operating results.

Environmental costs could decrease our net cash flow and adversely affect our profitability.

Our operations are subject to extensive regulations governing the creation, use, transportation and disposal of wastes and hazardous substances, air and water emissions, remediation, workplace exposure and other environmental matters. The costs of complying with such laws and regulations, including participation in assessments and clean-ups of sites, as well as internal voluntary programs, can be significant and will continue to be so for the foreseeable future. Future environmental regulations could impose stricter compliance requirements on us and the end markets that we serve. Additional pollution control equipment, process changes, or other environmental control measures may be needed at some of our facilities to meet future requirements. Additionally, evolving regulatory standards and expectations could result in increased litigation and/or increased costs of compliance with environmental laws, all of which could have a material and adverse effect on our business, financial condition, results of operations and cash flows.

Environmental matters for which we may be liable may arise in the future at our present sites, at previously owned sites, sites previously operated by us, sites owned by our predecessors or sites that we may acquire in the future. Our operations or liquidity in a particular period could be affected by certain health, safety or environmental matters, including remediation costs and damages related to several sites. The properties we own or lease are located in areas with a history of heavy industrial use. See “Business—Government Regulation and Environmental Matters”. The Comprehensive Environmental Response, Compensation, and Liability Act, or CERCLA, established responsibility for clean-up without regard to fault for persons who have released or arranged for disposal of hazardous substances at sites that have become contaminated and for persons who own or operate contaminated facilities. In many cases, courts have imposed joint and several liability on parties at CERCLA clean-up sites. Because a number of our properties are located in or near industrial or light industrial use areas, they may have been contaminated by pollutants which may have migrated from neighboring facilities or have been released by prior occupants. Some of our properties have been affected by releases of cutting oils and similar materials, and we are investigating and remediating such known contamination pursuant to applicable environmental laws. The costs of these clean-ups have not been material in the past. We are not currently subject to any claims or notices with respect to clean-up or remediation under CERCLA or similar laws for contamination at our leased or owned properties or at any off-site location. However, we cannot rule out the possibility that we could be notified of such claims in the future. It is also possible that we could be identified by the Environmental Protection Agency, a state agency or one or more third parties as a potentially responsible party under CERCLA or under analogous state laws.

On November 19, 2007, we acquired the assets and operations relating to the worldwide metals business of Olin Corporation. Olin Corporation agreed to retain liability arising out of then existing conditions on certain of our properties for any remedial actions required by environmental laws, and agreed to indemnify us for all or part of a number of other environmental liabilities. Since 2007, Olin Corporation has been performing remedial actions at the facilities in East Alton, Illinois and Waterbury, Connecticut, and has been participating in remedial actions at our other properties as well. If Olin Corporation were to stop its environmental remedial activities at our properties, we could be required to assume responsibility for these activities, the cost of which could be material. For additional information concerning the indemnity granted to us by Olin Corporation for environmental liabilities, see “Business—Government Regulation and Environmental Matters”.

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New governmental regulation of greenhouse gas emissions may subject us to significant new costs and restrictions on our operations.

Recently, Congress has considered legislation that would regulate greenhouse gas emissions through a cap-and-trade system under which emitters would be required to buy allowances to offset emissions of greenhouse gas. In addition, several states, including states where we have manufacturing plants, are considering various greenhouse gas registration and reduction programs. The EPA has also proposed several comprehensive regulations that would require reductions in greenhouse gas emissions by several types of sources. Certain of our manufacturing plants use significant amounts of energy, including electricity and natural gas, and certain of our plants emit amounts of greenhouse gas above certain minimum thresholds that are likely to be regulated. Greenhouse gas regulation could increase the price of the electricity we purchase, increase costs for our use of natural gas, potentially restrict access to, or the use of, natural gas, require us to purchase allowances to offset our own emissions, require operational changes or the use of new equipment or result in an overall increase in our costs of raw materials, any one of which could significantly increase our costs or capital expenditures, reduce our competitiveness or otherwise negatively affect our business, financial condition or results of operations. While future greenhouse gas regulation appears likely, it is too early to predict how this regulation may affect us.

We may be subject to litigation that could strain our resources and distract management.

From time to time, we are involved in a variety of claims, lawsuits and other disputes arising in the ordinary course of business. These suits concern issues including product liability, contract disputes, employee-related matters and personal injury matters. It is not feasible to predict the outcome of all pending suits and claims, and the ultimate resolution of these matters as well as future lawsuits could have a material adverse effect on our business, financial condition, results of operations, cash flows or reputation.

We may face product liability claims that are costly and create adverse publicity.

If any of the products that we sell cause harm to any of our customers, we could be exposed to product liability lawsuits. If we were found liable under product liability claims, we could be required to pay substantial monetary damages and see a decrease in demand for our products. Further, even if we successfully defended ourselves against this type of claim, we could be forced to spend a substantial amount of money in litigation expenses, our management could be required to spend time and resources to defend against these claims, we could face negative publicity or our reputation could otherwise suffer, any of which could result in a decrease in demand for our products or otherwise harm our business.

New derivatives legislation could have an adverse impact on our ability to use derivative contracts to manage risks associated with our business and on the cost of our derivative contracts.

We use over-the-counter, or OTC, derivatives products to manage our metal commodity price risks and our interest rate risks. Recent legislation adopted by Congress increases regulatory oversight of OTC derivatives markets and imposes restrictions on certain derivative transactions, which could affect the use of derivatives in hedging transactions. Final regulations defining the scope of this legislation and the extent to which different types of market participants will be subject to the legislation have not yet been adopted. If final regulations subject us to heightened capital or margin requirements or otherwise increase our costs, directly or indirectly through costs passed on to us by our trading counterparties, of entering into OTC derivatives transactions, they could have an adverse effect on our ability to hedge risks associated with our business and on the cost of maintaining our derivative contracts.

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We have material weaknesses in our internal control over financial reporting. If one or more material weaknesses persist, or if we fail to establish and maintain effective internal control over financial reporting, our ability to accurately report our financial results could be adversely affected.

As a public company, we will be required to comply with the standards adopted by the Public Company Accounting Oversight Board in compliance with the requirements of Section 404 of the Sarbanes-Oxley Act of 2002, as amended, regarding internal control over financial reporting. Prior to becoming a public company, we have not been required to comply with the requirements of Section 404. We will not be required to make our first annual assessment of our internal control over financial reporting pursuant to Section 404 until the year following our first annual report required to be filed with the SEC. Further, our independent registered public accounting firm is not yet required to formally attest to the effectiveness of our internal control over financial reporting until the year following our first annual report required to be filed with the SEC. Once it is required to do so, our independent registered public accounting firm may issue an adverse report in the event that they conclude that our internal control over financial reporting is not effective.

The process of becoming compliant with Section 404 may divert internal resources and will take a significant amount of time and effort to complete. We may experience higher than anticipated operating expenses, as well as increased independent registered public accounting firm fees during the implementation of these changes and thereafter. Completing documentation of our internal control system and financial processes, remediation of control deficiencies and management testing of internal controls will require substantial effort by us. While we have begun the process of evaluating our internal control over financial reporting, we are in the early phases of our review and may not be able to complete our review until after this offering is completed.

In connection with the audit of our subsidiary, Global Brass and Copper, we and our independent auditor identified certain material weaknesses in our internal control over financial reporting. A material weakness is a deficiency, or combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of the our annual or interim financial statements will not be prevented or detected on a timely basis. The following material weaknesses were identified:

See “Management’s Discussion and Analysis of Financial Condition and Results of Operations— Liquidity and Capital Resources—Outstanding Indebtedness—The ABL Facility” and “Management’s

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Discussion and Analysis of Financial Condition and Results of Operations—Internal Control over Financial Reporting” for further discussion of these material weaknesses.

In response, we have begun the process of evaluating our internal control over financial reporting, although we are in the early phases of our review and may not complete our review until after this offering is completed. We cannot predict the outcome of our review at this time. During the course of the review, we may identify additional control deficiencies, which could give rise to other material weaknesses in addition to those previously identified. As a result, our ability to report our financial results on a timely and accurate basis may be adversely affected, we may be subject to sanctions or investigation by regulatory authorities and investors may lose confidence in our financial information, which in turn could adversely affect the market price of Global Brass and Copper Holdings’ common stock.

You should not place undue reliance on the selected financial and other information of our predecessor as of and for the year ended December 31, 2006, as of November 18, 2007 and for the period from January 1, 2007 to November 18, 2007, which are summarized in this prospectus.

The selected financial and other information of our predecessor as of November 18, 2007 and for the period from January 1, 2007 to November 18, 2007 has been derived from books and records that were provided to us by Olin Corporation in the acquisition of the worldwide metals business of Olin Corporation and has not been subject to a review or audit by us or any independent registered public accounting firm. There is a risk that this unaudited financial information may contain errors that might have been detected in a review or audit process or might have been different if prepared in accordance with our policies and procedures instead of those of Olin Corporation. Furthermore, while the historical financial information as of and for the year ended December 31, 2006 was audited by Olin Corporation’s independent auditors for use by Olin Corporation and provided to us by Olin Corporation in connection with the acquisition transaction, Olin Corporation’s independent auditors have not performed any procedures with regard to the inclusion of any such financial or other information in this prospectus. Therefore, all of the predecessor financial information contained in this prospectus may not be reflective of our predecessor’s true historical financial information as of the dates presented and for the periods presented. Any differences between the financial information presented as of such dates and for the periods presented in this prospectus and the relevant actual historical financial information may be material.

In addition, the selected financial and other information of our predecessor as of and for the fiscal year ended December 31, 2006 and for the period from January 1, 2007 to November 18, 2007 and as of November 18, 2007 was prepared using an accounting basis that is different from that used to prepare the successor’s consolidated financial statements. The predecessor financial and other information for the fiscal year ended December 31, 2006 and the period from January 1, 2007 to November 18, 2007 do not reflect the application of purchase accounting for our November 19, 2007 acquisition of the worldwide metals business from Olin Corporation, and such information for the period from January 1, 2007 to November 18, 2007 also does not reflect the allocation of Olin Corporation selling, general and administrative expenses to the metals business unit. We have only limited knowledge regarding the predecessor financial information, including the accounting policies under which the predecessor financial information was prepared. As is customary in such circumstances, we relied on contractual representations, warranties and indemnities of Olin Corporation, as seller, relating to the predecessor financial information. Based on these representations and warranties, we believe that the predecessor financial information was prepared on a GAAP basis and consistent with Olin Corporation’s accounting policies and procedures, but do not have access to records or personnel of Olin Corporation that would confirm this or provide the basis for any greater detail about the accounting

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basis used to prepare the predecessor financial information. Such information may not be comparable to the successor’s consolidated financial statements. Accordingly, you are cautioned not to place undue reliance on the selected financial and other information of our predecessor included in this prospectus.

Increasing costs of insurance may adversely impact our results of operations.

While we are insured against certain claims, including in respect of general liability, property damage (including natural disasters and fire), equipment damage and injury to our personnel, our insurance may not cover all of the claims to which we may become subject, and future coverage of such claims may not be available on commercially reasonable terms, if at all. If we are unable to obtain adequate insurance coverage, substantial property or equipment damage, personal injury or other claims could materially impact our earnings and cash flows. Continued increases in insurance costs, additional coverage restrictions or unavailability of certain insurance products and other factors could increase our operating costs and further increase our exposure to natural disasters and other causes of catastrophic loss, as well as personal injury and other claims.

Failure to protect, or uncertainty regarding the validity, enforceability or scope of, our intellectual property rights could impair our competitive position.

Our products are covered by a variety of proprietary rights that are important to our competitive position and success. Because the intellectual property associated with our products, including Eco Brass ^® technology is evolving and rapidly changing, our current intellectual property rights may not protect us adequately. We rely on a combination of patents, trademarks, trade secrets and other intellectual property rights, in addition to contractual rights, to protect the intellectual property we use in our business. However, it is possible that our intellectual property rights could be challenged, invalidated or violated. Our pending patent applications may not be granted or, if granted, the resulting patent may be challenged or invalidated by our competitors or by other third parties. Despite our efforts to protect our proprietary rights, third parties may attempt to copy or otherwise obtain and use our intellectual property without our authorization. In addition, monitoring unauthorized use of our intellectual property is difficult, and we cannot be certain the steps we take to protect our intellectual property will prevent infringement or identify all unauthorized users of our intellectual property.

Because the extent to which any new technologies will enjoy intellectual property protection is uncertain, there can be no assurance that we will be able to maintain our competitive position by enforcing intellectual property rights in the future. Furthermore, our competitors independently may develop similar or improved technologies that limit the value of our intellectual property or design around patents issued to us. If competitors or third parties are able to use our intellectual property or are able to successfully challenge, circumvent, invalidate or render unenforceable our intellectual property, we likely would lose a significant portion of our competitive advantage in the market for products covered by such intellectual property. We may not be successful in securing or maintaining proprietary or patent protection for the technology used in our products and services, and protection that is secured may be challenged and possibly lost. We may have to prosecute unauthorized uses of our intellectual property and the expense, time, delay and burden on management of such litigation could prevent us from maintaining or increasing our business. Our inability to protect our intellectual property adequately for these and other reasons could result in weakened demand for our products and services, which could result in a material adverse effect on our business, financial condition, results of operations or cash flows.

In addition, we have entered into agreements with Mitsubishi Shindoh pursuant to which we have access to and the right to use certain of its technologies. To the extent that Mitsubishi Shindoh faces challenges to its intellectual property rights in its technologies, it could have an adverse effect on our ability to market our products and/or services that incorporate those technologies, which would result in a decline in our net sales.

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We could become subject to litigation regarding intellectual property rights, which could harm our business significantly.

Our commercial success will continue to depend in part on our ability to make and sell our products or provide our services without infringing the patents or proprietary rights of third parties. We face these risks with respect to intellectual property that we have developed internally, as well as with respect to intellectual property rights we have acquired from third parties. For example, pursuant to a license agreement, we have access to and the right to use certain technologies owned by Mitsubishi Shindoh. To the extent that Mitsubishi Shindoh has failed to adequately protect the technologies upon which we rely or if these technologies infringe upon the patents or proprietary rights of third parties, we may be unable to continue using such technologies or we may face lawsuits related to our past use of these technologies. In addition, our competitors, who have made significant investments in competing technologies or products, may seek to apply for and obtain patents that will prevent, limit or interfere with our ability to make or sell our products or provide our services.

If we are unsuccessful in defending against any challenge to our rights to market and sell our products, our rights to use third-party technologies or to provide our services, we may, among other things, be required to:

Even if we successfully defend any infringement claims, the expense, time, delay and burden on management of litigation could prevent us from maintaining or increasing our business. Further, negative publicity could decrease demand for our products and services and cause our revenues to decline, thus harming our operating results significantly.

If we are unable to protect the confidentiality of our proprietary information and know-how, the value of our technology, products and services could be harmed significantly.

We rely on trade secrets, know-how and other proprietary information in operating our business. We seek to protect this information, in part, through the use of confidentiality agreements with employees, consultants, advisors and others who may have access to such proprietary information upon commencement of their relationships with us. These agreements require that all confidential information developed by the individual or made known to the individual by us during the course of the individual’s relationship with us be kept confidential and not disclosed to third parties. Our agreements with employees also provide that any inventions conceived by the individual in the course of rendering services to us are our exclusive property. Nonetheless, those agreements may not provide adequate protection for our trade secrets, know-how or other proprietary information and prevent their unauthorized use or disclosure. In the event of unauthorized use or disclosure of our trade secrets or proprietary information, these agreements may not provide meaningful protection, particularly for our trade secrets or other confidential information.

To the extent that consultants, key employees or other third parties apply technological information independently developed by them or by others to our proposed products, disputes may

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arise as to the proprietary rights to such information, which may not be resolved in our favor. The risk that other parties may breach confidentiality agreements or that our trade secrets become known or independently discovered by competitors, could harm us by enabling our competitors, who may have greater experience and financial resources, to copy or use our trade secrets and other proprietary information in the advancement of their products, methods or technologies. The disclosure of our trade secrets would impair our competitive position, thereby weakening demand for our products or services and harming our ability to maintain or increase our customer base.

In addition, to the extent that we do not fulfill our contractual or other obligations to adequately protect the technologies to which we have been granted access by Mitsubishi Shindoh, we could be liable for any resulting harm to its business or could lose further access to this technology, which could harm our business, operating results or financial condition.

Disruption or failures of our information technology systems could have a material adverse effect on our business.

Our information technology systems have not been updated for many years. As a result, our information technology systems are more susceptible to security breaches, operational data loss, general disruptions in functionality, and may not be compatible with new technology. We depend on our information technology systems for the effectiveness of our operations and to interface with our customers, as well as to maintain financial records and accuracy. Disruption or failures of our information technology systems could impair our ability to effectively and timely provide our services and products and maintain our financial records, which could damage our reputation and have a material adverse effect on our business.

Our liquidity, financial condition and ability to operate our business could be adversely affected by the failure of financial institutions to fulfill their commitments under committed credit facilities.

The ABL Facility is an asset-based revolving loan facility with a maximum availability of $150.0 million, subject to a borrowing base calculation. If one or more of the financial institutions that are lenders under the ABL Facility were to default on its obligations to provide available borrowings under the ABL Facility, such a default could have a material adverse effect on our liquidity, and we might not be able to fulfill our cash needs using other sources, which could have a material and adverse effect on our financial condition and ability to operate our business.

Global Brass and Copper Holdings is a holding company and relies on future dividends and other payments, advances and transfers of funds from its subsidiaries to meet its financial obligations and provide cash for any dividends it might pay in the future.

Global Brass and Copper Holdings has no direct operations and derives all of its cash flow from its subsidiaries. Because Global Brass and Copper Holdings conducts its operations through its subsidiaries, Global Brass and Copper Holdings depends on those entities for dividends and other payments to generate the funds necessary to meet its financial obligations, and to pay any dividends with respect to its common stock. Legal and contractual restrictions in the ABL Facility, the Term Loan Facility and other debt agreements governing current and future indebtedness of Global Brass and Copper Holdings’ subsidiaries, as well as the financial condition and operating requirements of Global Brass and Copper Holdings’ subsidiaries, may limit the ability of Global Brass and Copper Holdings to obtain cash from its subsidiaries. The earnings from, or other available assets of, Global Brass and Copper Holdings’ subsidiaries may not be sufficient to pay dividends or make distributions or loans to enable Global Brass and Copper Holdings to pay any dividends on our common stock.

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We face a number of risks related to future acquisitions and joint ventures.

We have made investments to expand and streamline our business, including our acquisition in January 2008 of the North American order book, customer list and certain other assets of Bolton Metal Products Company. We recently amended the agreements governing the Term Loan Facility and ABL Facility in contemplation of a potential acquisition of Hussey Copper Ltd. (“Hussey Copper”) in a competitive bidding process before the U.S. Bankruptcy Court in Delaware. We abandoned the contemplated acquisition prior to completing our due diligence review or making a final determination as to purchase price. Hussey Copper has been sold to another bidder, and we are currently not contemplating any probable future acquisitions. We will continue to seek opportunities for further acquisitions to supplement our operations and for expansion of our international presence, particularly in Asia, through joint ventures.

Acquisitions and joint ventures involve a number of risks which could have an adverse effect on our business, financial condition, results of operations and cash flows, including the following:

In addition, we may require additional debt or equity financing for future acquisitions, and such financing may not be available on favorable terms, if available at all. We may not be able to successfully integrate or profitably operate any new business we acquire, and we cannot assure you that any such acquisition will meet our expectations. The process of integrating acquired operations into our existing operations may result in unforeseen operating difficulties and may require significant financial resources that would otherwise be available for the ongoing development or expansion of existing operations. Finally, in the event we decide to discontinue pursuit of a potential acquisition, we will be required to immediately expense all costs incurred in pursuit of the possible acquisition, which may have an adverse effect on our results of operations in the period in which the expense is recognized.

Risks Related to an Investment in Our Common Stock and this Offering

Our controlling stockholder may have interests that conflict with the interests of other stockholders.

Halkos will own     % of our common stock (    % if the underwriters’ option to purchase additional shares is exercised in full) after this initial public offering. Through Halkos, KPS will have the ability to elect substantially all of the members of the board of directors of Global Brass and Copper Holdings (the “Board of Directors”) and make decisions relating to fundamental corporate actions. The directors generally will have the authority to make decisions affecting our capital structure, including the issuance of additional shares of stock, additional debt and declaration of dividends, will be able to select our management team, determine our corporate and management policies and authorize or

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prevent transactions that require approval of the Board of Directors or majority of stockholders of Global Brass and Copper Holdings, such as joint ventures or acquisitions, subject to certain restrictions as set forth in the agreements governing the ABL Facility or the Term Loan Facility or future credit facilities. These decisions could enhance KPS’s equity investment while involving risks to the interests of other stockholders. In addition, KPS has engaged, and may in the future continue to engage, in transactions with us. See “Certain Relationships and Related Party Transactions”.

As a “controlled company” within the meaning of the NYSE’s corporate governance rules, we will qualify for, and intend to rely on, exemptions from certain NYSE corporate governance requirements. As a result, holders of our common stock may not have the same degree of protection as that afforded to stockholders of companies that are subject to all of the NYSE’s corporate governance requirements.

Following this offering, we will be a “controlled company” within the meaning of the NYSE’s corporate governance rules as a result of the ownership position and voting rights of KPS, through Halkos, upon completion of this offering. A “controlled company” is a company of which more than 50% of the voting power is held by an individual, group or another company. More than 50% of our voting power will be held by KPS, through Halkos, after completion of this offering. As a controlled company we may elect not to comply with certain NYSE corporate governance rules that would otherwise require the Board of Directors to have a majority of independent directors and our compensation and nominating and governance committees to be comprised entirely of independent directors, have written charters addressing such committee’s purpose and responsibilities and perform an annual evaluation of such committee. Accordingly, holders of our common stock will not have the same protection afforded to stockholders of companies that are subject to all of the NYSE corporate governance requirements and the ability of our independent directors to influence our business policies and affairs may be reduced.

Our directors who have relationships with KPS may have conflicts of interest with respect to matters involving our company.

Following this offering, five of our eight non-executive directors will be affiliated with KPS. These persons will have fiduciary duties to Global Brass and Copper Holdings and in addition will have duties to KPS. In addition, our amended and restated certificate of incorporation will provide that no officer or director of us who is also an officer, director, employee or other affiliate of KPS or an officer, director or employee of an affiliate of KPS will be liable to us or our stockholders for breach of any fiduciary duty by reason of the fact that any such individual directs a corporate opportunity to KPS or its affiliates instead of us, or does not communicate information regarding a corporate opportunity to us that such person or affiliate has directed to KPS or its affiliates. As a result, such circumstances may entail real or apparent conflicts of interest with respect to matters affecting both us and KPS, whose interests, in some circumstances, may be adverse to ours. In addition, as a result of KPS’ indirect ownership interest, conflicts of interest could arise with respect to transactions involving business dealings between us and KPS or its affiliates, including potential business transactions, potential acquisitions of businesses or properties, the issuance of additional securities, the payment of dividends by us and other matters.

There has been no prior public market for our common stock, and the trading price of our common stock may be adversely affected if an active trading market in our common stock does not develop. Our stock price may be volatile, and you may be unable to resell your shares at or above the offering price or at all.

Prior to this offering, there has been no public market for our common stock, and an active trading market may not develop or be sustained upon the completion of this offering. We cannot predict the extent to which investor interest will lead to the development of an active trading market in shares

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of our common stock or whether such a market will be sustained. The initial public offering price of our common stock offered in this prospectus will be determined through our negotiations with the underwriters and may not be indicative of the market price of the common stock after this offering. See “Underwriting”. The market price of our common stock after this offering will be subject to significant fluctuations in response to, among other factors, variations in our operating results and market conditions specific to our industry. If an active public market does not develop or is not sustained, it may be difficult for you to sell your shares at a price that is attractive to you, or at all.

The price of our common stock may fluctuate significantly and you could lose all or part of your investment.

Our stock price may be volatile. Volatility in the market price of our common stock may prevent you from being able to sell your common stock at or above the price you paid for your common stock. The market price for our common stock could fluctuate for various reasons, including:

See “—Risks Related to Our Business”. These and other factors may lower the market price of our common stock, regardless of our actual operating performance. As a result, our common stock may trade at prices significantly below the public offering price.

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Furthermore, in recent years the stock market has experienced significant price and volume fluctuations. This volatility has had a significant impact on the market price of securities issued by many companies, including companies in our industry. The changes frequently appear to occur without regard to the operating performance of the affected companies. Hence, the price of our common stock could fluctuate based upon factors that have little or nothing to do with us, and these fluctuations could materially reduce our share price and materially affect the value of your investment.

Future sales of shares of our common stock in the public market could cause our stock price to fall significantly even if our business is profitable.

Upon the completion of this offering we will have             outstanding shares of common stock. Of these shares, the shares of common stock offered in this prospectus will be freely tradable without restriction in the public market, unless purchased by our affiliates. We expect that the remaining             outstanding shares of our common stock will become available for resale in the public market as shown in the chart below. Our officers, directors, Halkos and the holders of substantially all of our outstanding shares of common stock have signed lock-up agreements pursuant to which they have agreed not to sell, transfer or otherwise dispose of any of their shares for 180 days after the date of this prospectus, subject to specified exceptions. The underwriters may, in their sole discretion and without notice, release the restrictions on all or any portion of the common stock subject to lock-up agreements. The underwriters are entitled to waive the lock-up provisions at their discretion prior to the expiration dates of such lock-up agreements.

Immediately following the completion of this offering, shares of our common stock will become available for resale in the public market as follows: