PART I

FINANCIAL INFORMATION

The accompanying unaudited notes are an integral part of these condensed consolidated financial statements.

2

The accompanying unaudited notes are an integral part of these condensed consolidated financial statements.

3

The accompanying unaudited notes are an integral part of these condensed consolidated financial statements.

4

The accompanying unaudited notes are an integral part of these condensed consolidated financial statements.

5

Superior Industries International, Inc.

Interim financial reporting standards require us to make estimates that are based on assumptions regarding the outcome of future events and circumstances not known at that time, including the use of estimated effective tax rates. Inevitably, some assumptions will not materialize, unanticipated events or circumstances may occur which vary from those estimates and such variations may significantly affect our future results. Additionally, interim results may not be indicative of our results for future interim periods or our annual results.

New Accounting Standards

Adoption of New Accounting Standards

ASU 2014-09, Topic 606, “Revenue – Revenue from Contracts with Customers” (including all related amendments) . On January 1, 2018, we adopted “Revenue from Contracts with Customers” and all the related amendments (the “new revenue standard”) using the modified retrospective method. Adoption of the standard did not have a material effect on our financial position or results of operations as the company’s method for recognizing revenue under the new standard does not vary significantly from revenue recognition practices under the prior standard.

ASU 2017-12 Improvements to Hedge Accounting Activities.” On January 1, 2018, we adopted the “Targeted Improvements to Accounting for Hedging Activities.” The principal change in accounting for hedges under this standard is that hedge ineffectiveness (for qualifying hedges subject to hedge accounting) will be recognized in other comprehensive income (rather than earnings) until the hedged item is recognized in earnings, at which point accumulated gains or losses will be recognized in earnings and classified with the underlying hedged expense. Other than the accounting for hedge ineffectiveness, the provisions of this standard apply prospectively. Gains and losses arising from hedge ineffectiveness previously recognized in earnings have been insignificant. Accordingly, there is no cumulative balance sheet adjustment or restatement associated with adoption of this standard.

ASU 2016-16, “ Classification of Certain Cash Receipts and Cash Payments.” We adopted this standard as of January 1, 2018. The objective of the ASU is to address the diversity in practice in the presentation of certain cash receipts and cash payments in the statement of cash flows. This standard did not have a material effect on our financial condition or results of operations.

ASU 2017-07, “Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost.” In March 2017, the FASB issued this standard to improve the reporting of net benefit cost in the financial statements. We adopted this standard as of January 1, 2018. Due to the immateriality of our pension and postretirement costs, this standard does not have a material effect on our financial condition or results of operations. Accordingly, no restatement of previously issued financial statements is necessary and the provisions of this standard have been applied prospectively.

ASU 2017-11, “(Part I) Accounting for Certain Financial Instruments with Down Round Features, (Part II) Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interests with a Scope Exception.” The objective of this standard is to reduce the complexity in accounting for certain financial instruments with down round features. When determining whether certain financial instruments should be classified as debt or equity instruments, a down round feature would no longer preclude equity classification when assessing whether the instrument is indexed to an entity’s own stock. As a result, a freestanding equity-linked financial instrument (or embedded conversion option) no longer would be accounted for as a derivative liability at fair value because of the existence of a down round feature. The company has no relevant transactions at the present time. As a result, this standard does not have a material effect on our financial condition or results of operations.

ASU 2017-01, “Clarifying the Definition of a Business.” We have adopted this standard as of January 1, 2018. The objective of the ASU is to add guidance to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. This standard does not have a material effect on our financial condition or results of operations since we have no imminent acquisitions.

ASU 2016-18, “Restricted Cash.” The objective of the ASU is to address the diversity in practice that exists in the classification and presentation of changes in restricted cash on the statement of cash flows. This standard was adopted January 1, 2018 and did not have a material effect on our financial condition or results of operations since we have no restricted cash balances.

7

ASU 2016-16, “ Intra-Entity Transfers of Assets Other than Inventory.” The objective of the ASU is to improve the accounting for the income tax consequences of intra-entity transfers of assets other than inventory. This standard was adopted January 1, 2018 and did not have a material effect on our financial condition or results of operations since we have no significant intra-entity transfers other than inventory.

Accounting Standards Issued But Not Yet Adopted

ASU 2016-02, “Leases.” In February of 2016, the FASB issued “Leases.” ASU 2016-02 requires an entity to recognize right-of-use assets and lease liabilities on its balance sheet and disclose key information about leasing arrangements. ASU 2016-02 offers specific accounting guidance for a lessee, a lessor and sale and leaseback transactions. Lessees and lessors are required to disclose qualitative and quantitative information about leasing arrangements to enable a user of the financial statements to assess the amount, timing and uncertainty of cash flows arising from leases. For public companies, ASU 2016-02 is effective for annual reporting periods beginning after December 15, 2018, including interim periods within that reporting period, and requires modified retrospective adoption, with early adoption permitted. We are evaluating the impact this guidance will have on our financial position and statement of operations.

ASU 2017-04, “Simplifying the Test for Goodwill Impairment.” In January 2017, the FASB issued an ASU entitled “Intangibles—Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment.” The objective of the ASU is to simplify how an entity is required to test goodwill for impairment by eliminating Step 2 from the goodwill impairment test. Step 2 measures a goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. This ASU is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is permitted. We are evaluating the impact this guidance will have on our financial position and statement of operations.

ASU 2018-02, “Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income.” In January 2018, the FASB issued ASU 2018-02, “Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income,” which gives entities the option to reclassify to retained earnings the tax effects resulting from the Tax Cut and Jobs Act (“the Act”) related to items in accumulated other comprehensive income (AOCI) that the FASB refers to as having been stranded in AOCI. The new guidance may be applied retrospectively to each period in which the effect of the Act is recognized in the period of adoption. The company must adopt this guidance for fiscal years beginning after December 15, 2018 and interim periods within those fiscal years. Early adoption is permitted for periods for which financial statements have not yet been issued or made available for issuance, including the period the Act was enacted. The guidance, when adopted, will require new disclosures regarding a company’s accounting policy for releasing the tax effects in AOCI. We are evaluating the impact this guidance will have on our financial position and statement of operations.

Note 3 – Acquisition

On March 23, 2017, Superior announced that it had entered into various agreements to commence a tender offer to acquire 100 percent of the outstanding equity interests of Uniwheels AG (the “Acquisition”) through a newly-formed, wholly-owned subsidiary (the “Acquisition Sub”). The Acquisition was effected through a multi-step process as more fully described below.

In the first step of the Acquisition, on March 23, 2017, Superior obtained a commitment from the owner of approximately 61 percent of the outstanding stock of Uniwheels, Uniwheels Holding (Malta) Ltd. (the “Significant Holder”), evidenced by an irrevocable undertaking agreement (the “Undertaking Agreement”) to tender such stock in the second step of the Acquisition. In connection with the Undertaking Agreement, on March 23, 2017: (i) Superior entered into a business combination agreement with Uniwheels pursuant to which, subject to the provisions of the German Stock Corporation Act, Uniwheels and its subsidiaries undertook to, among other things, cooperate with the financing of the Acquisition; and (ii) Superior and the Significant Holder entered into a guarantee and indemnification agreement pursuant to which Superior will hold the Significant Holder harmless for claims that may arise relating to its involvement with Uniwheels. As Uniwheels was a company listed on the Warsaw Stock Exchange, the Acquisition was required to be carried out in accordance with the Polish Act of 29 July 2005 on Public Offerings and the Conditions for Introducing Financial Instruments to Organized Trading and Public Companies (the “Public Offering Act”).

8

Following the publication of a formal tender offer document by Superior, as required by the Public Offering Act, Superior commenced the acceptance period for the tender offer (the “Tender Offer”) on April 12, 2017, pursuant to which, Superior offered to purchase all (but not less than 75 percent of) the outstanding stock of Uniwheels and, upon the consummation of the Tender Offer, agreed to purchase the stock of the Significant Holder along with all other stock of Uniwheels tendered pursuant to the Tender Offer. On May 30, 2017, Superior acquired 92.3 percent of the outstanding stock of Uniwheels for approximately $703.0 million (based on an exchange rate of 1.00 Dollar = 3.74193 Polish Zloty). We refer to this acquisition as the “First Step Acquisition.”

Under the terms of the Tender Offer:

On June 30, 2017, the company announced that it had commenced the delisting and associated tender process for the remaining outstanding shares of Uniwheels. As of July 31, 2017, 153,251 additional shares (representing 1.2 percent of Uniwheels shares) were tendered at Polish Zloty 247.87 per share. On December 15, 2017, an additional 75,000 shares (representing 0.6 percent of Uniwheels shares) were tendered at Polish Zloty 262.50 per share.

Superior decided to pursue a Domination and Profit and Loss Transfer Agreement (“DPLTA”) without concurrently pursuing a merger/squeeze-out. This approach enables Superior to realize substantial synergies of a consolidated entity without the distraction or expense associated with simultaneously pursuing the purchase of the remaining shares. According to the terms of the DPLTA, Superior AG offered to purchase any further tendered shares for cash consideration of Euro 62.18, or approximately Polish Zloty 264 per share. This cash consideration may be subject to change based on appraisal proceedings that the minority shareholders of Uniwheels have initiated. Because the aggregate equity purchase price of the Acquisition (assuming an exchange rate of 1.00 Dollar = 3.74193 Polish Zloty) was determined at the time of the initial acquisition, any increase in the resulting price must be reflected as a reduction of paid in capital (common stock). For each share that is not tendered, Superior will be obligated to pay a guaranteed annual dividend of Euro 3.23 as long as the DPLTA is in effect beginning in 2019. Subsequently, the name of the business was changed to Superior Industries Europe AG (hereafter referred to as Europe or our European operations).

The DPLTA became effective by entry on the commercial registry on January 17, 2018, with retroactive effect as of January 1, 2018. As a result, the carrying value of the non-controlling interest related to Uniwheels AG common shares outstanding of $51.9 million, which was presented as a component of total equity as of December 31, 2017, was reclassified to European non-controlling redeemable equity during the first quarter of 2018. The non-controlling interest shares may be tendered at any time and are, therefore, immediately redeemable and must be classified outside stockholders’ equity. For the period of time that the DPLTA is in effect, the non-controlling interests will continue to be presented in European non-controlling redeemable equity outside of stockholders’ equity in the condensed consolidated balance sheets. A total of 1,579 additional shares were tendered at the DPLTA price of Euro 62.18 in the first half of 2018.

The company’s condensed consolidated financial statements include the results of our European operations subsequent to May 30, 2017 (refer to Note 7, “Business Segments” for more information). The company’s condensed consolidated financial statements reflect the purchase accounting adjustments in accordance with ASC 805 “Business Combinations”, whereby the purchase price was allocated to the assets acquired and liabilities assumed based upon their estimated fair values on the acquisition date.

During the fourth quarter of 2017, the company obtained an updated valuation of the identifiable assets acquired and the liabilities assumed. The purchase price allocation was finalized in Q2 2018, with no significant adjustments. The following is the allocation of the purchase price:

9

The above goodwill represents future economic benefits expected to be recognized from the company’s expansion into the European wheel market, as well as expected future synergies and operating efficiencies. Goodwill resulting from the Acquisition of $296.2 million (initial balance of $286.2 million, increased for post-acquisition translation adjustments) has been allocated to the European segment.

10

Note 4 – Revenue

On January 1, 2018, we adopted ASU 2014-09, Topic ASC 606, “Revenue from Contracts with Customers.” Under this new standard, revenue is recognized when performance obligations under our contracts are satisfied. Generally, this occurs upon shipment when control of products transfers to our customers. At this point, revenue is recognized in an amount reflecting the consideration we expect to be entitled to under the terms of our contract.

In accordance with ASC 606, the company disaggregates revenue from contracts with customers into our segments, North America and Europe. Revenues by segment for the three and six months ended June 30, 2018 are summarized in the table below (in thousands):

The company maintains long term business relationships with our OEM customers and aftermarket distributors; however, there are no definitive long-term volume commitments under these arrangements. Volume commitments are limited to near-term customer requirements authorized under purchase orders or production releases generally with delivery periods of less than a month. Sales do not involve any significant financing component since customer payment is generally due 40-60 days after shipment. Payments for tooling are generally due upon customer acceptance. Contract assets and liabilities consist of receivables and deferred revenue related to tooling. When the timing of product delivery is different than payments made by customers, the company recognizes either a contract asset (performance precedes payment) or a contract liability (customer payment precedes performance, such as deferred tooling revenue reimbursement).

At contract inception, the company assesses goods and services promised in its contracts with customers and identifies a performance obligation for each promise to deliver a good or service (or bundle of goods or services) that is distinct. Principal performance obligations under our customer contracts consist of manufacture and delivery of aluminum wheels, including production parts, service parts and replacement parts. As a part of the delivery of the wheels, we develop tooling necessary to produce the wheels. Accordingly, tooling costs, which are explicitly recoverable from our customers, are capitalized as preproduction costs and amortized over the average life of the vehicle wheel program (refer to Note 11, “Preproduction Cost Related to Long Term Supply Arrangements”). Customer reimbursement for tooling is deferred and amortized over the life of the vehicle wheel program.

In the normal course of business, the company does not accept product returns unless the item is defective as manufactured and the company’s warranties are limited to product specifications. Accordingly, warranty costs are treated as a cost of fulfillment subject to accrual under ASC 460, rather than a performance obligation. The company establishes provisions for estimated returns and warranties. In addition, the company does not typically provide customers with the right to a refund but provides for product replacement.

Prices allocated to production, service and replacement parts are based on prices established in our purchase orders which represent the standalone selling price. Prices for service and replacement parts are commensurate with production parts with adjustment for any special packaging. Customer tooling reimbursement is generally based on quoted prices or cost not to exceed quoted prices. In addition, prices are subject to retrospective adjustment for changes in commodity prices for certain raw materials, aluminum and silicon, as well as production efficiencies and wheel weight variations from specifications used in pricing. These price adjustments are treated as variable consideration.

11

We estimate variable consideration by using the “most likely” amount estimation approach. For commodity price fluctuations, estimates are based on the commodity index at contract inception. Changes in commodity prices are monitored and revenue is adjusted as changes in the commodity index occur. Prices incorporate the wheel weight price component based on product specifications. Weights are monitored and prices adjusted as variations arise. Price adjustments due to production efficiencies are generally recognized as and when negotiated with customers. Customer contract prices are generally adjusted quarterly to incorporate retroactive price adjustments. Based on timely accrual, timeliness of contract price adjustments and extensive experience, we do not believe that these adjustments would result in any significant cumulative reversal of revenue.

The opening and closing balances of the company’s receivables and current and long-term contract liabilities are as follows (in thousands):

The changes in receivables and liability balances primarily result from timing differences between our performance and customer payment. During the three and six-month periods ended June 30, 2018, the company recognized tooling reimbursement revenue of $2.1 million and $3.7 million, respectively, which had been deferred in prior periods and was previously included in the current portion of the contract liability (deferred revenue). During the three and six-month periods ended June 30, 2018, the company recognized revenue of $0.2 million and $1.9 million, respectively, from obligations satisfied in prior periods as a result of retrospective price adjustments arising from changes in commodity prices, production efficiencies or wheel weight.

Under the company’s policies, shipping costs are treated as a cost of fulfillment. In addition, as permitted under a practical expedient relating to disclosure of performance obligations, the company does not disclose remaining performance obligations under its contracts since contract terms are substantially less than a year (generally less than one month).

Note 5 – Fair Value Measurements

The company applies fair value accounting for all financial assets and liabilities and non-financial assets and liabilities that are recognized or disclosed at fair value in the financial statements on a recurring basis, while other assets and liabilities are measured at fair value on a nonrecurring basis, such as when we have an asset impairment. Fair value is estimated by applying the following hierarchy, which prioritizes the inputs used to measure fair value into three levels and bases the categorization within the hierarchy upon the lowest level of input that is available and significant to the fair value measurement:

Level 1 – Quoted prices in active markets for identical assets or liabilities.

Level 2 – Observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

Level 3 – Inputs that are generally unobservable and typically reflect management’s estimate of assumptions that market participants would use in pricing the asset or liability.

The carrying amounts for cash and cash equivalents, investments in certificates of deposit, accounts receivable, accounts payable and accrued expenses approximate their fair values due to the short period of time until maturity.

12

Cash and Cash Equivalents

Included in cash and cash equivalents are highly liquid investments that are readily convertible to known amounts of cash, and which are subject to an insignificant risk of change in value due to interest rates, quoted price or penalty on withdrawal. A debt security is classified as a cash equivalent if it meets these criteria and if it has a remaining time to maturity of three months or less from the date of acquisition. Amounts on deposit and available upon demand, or negotiated to provide for daily liquidity without penalty, are classified as cash and cash equivalents. Time deposits, certificates of deposit and money market accounts that meet the above criteria are reported at par value on our balance sheet and are excluded from the table below.

Derivative Financial Instruments

Our derivatives are over-the-counter customized derivative transactions and are not exchange traded. We estimate the fair value of these instruments using industry-standard valuation models such as a discounted cash flow. These models project future cash flows and discount the future amounts to a present value using market-based expectations for interest rates, foreign exchange rates, commodity prices and the contractual terms of the derivative instruments. The discount rate used is the relevant interbank deposit rate (e.g., LIBOR) plus an adjustment for non-performance risk. In certain cases, market data may not be available, and we may use broker quotes and models (e.g., Black-Scholes) to determine fair value. This includes situations where there is lack of liquidity for a particular currency or commodity or when the instrument is longer dated. The fair value measurements of the redeemable preferred shares embedded derivatives are based upon Level 3 unobservable inputs reflecting management’s own assumptions about the inputs used in pricing the liability. Refer to Note 6, “Derivative Financial Instruments.”

Cash Surrender Value

The cash surrender value of the life insurance policies is the sum of money the insurance company will pay to the company in the event the policy is voluntarily terminated before its maturity or the insured event occurs. Over the term of the life insurance contracts, the cash surrender value changes as a result of premium payments and investment income offset by investment losses, charges and miscellaneous fees. The amount of the asset recorded for the investment in the life insurance contracts is equal to the cash surrender value which is the amount that will be realized under the contract as of the balance sheet date if the insured event occurs.

The following table categorizes items measured at fair value at June 30, 2018:

13

The following table categorizes items measured at fair value at December 31, 2017:

The following table summarizes the changes during the first six months of 2018 in level 3 fair value measurement of the embedded derivative liability relating to the redeemable preferred shares issued in connection with the acquisition of European operations:

Note 6 – Derivative Financial Instruments

Derivative Instruments and Hedging Activities

We use derivatives to partially offset our business exposure to foreign currency, interest rates, and aluminum commodity risk.

14

We may enter into forward contracts, option contracts, swaps, collars or other derivative instruments to offset some of the risk on expected future cash flows and on certain existing assets and liabilities. However, we may choose not to hedge certain exposures for a variety of reasons including, but not limited to, accounting considerations and the prohibitive economic cost of hedging particular exposures. There can be no assurance the hedges will offset more than a portion of the financial impact resulting from movements in foreign currency exchange rates.

To help protect gross margins from fluctuations in foreign currency exchange rates, certain of our subsidiaries, whose functional currency is the U.S. dollar or the Euro, hedge a portion of forecasted foreign currency costs denominated in the Mexican Peso and Polish Zloty, respectively. We may hedge portions of our forecasted foreign currency exposure up to 48 months.

We record all derivatives in the condensed consolidated balance sheets at fair value. Our accounting treatment for these instruments is based on the hedge designation. The cash flow hedges that are designated as hedging instruments are recorded in Accumulated Other Comprehensive Income (“AOCI”) until the hedged item is recognized in earnings, at which point accumulated gains or losses will be recognized in earnings and classified with the underlying hedged expense. Derivatives that are not designated as hedging instruments are adjusted to fair value through earnings in the financial statement line item to which the derivative relates. At June 30, 2018, the company held derivatives that were designated as hedging instruments as well as derivatives that did not qualify for designation as hedging instruments as discussed below.

Deferred gains and losses associated with cash flow hedges of foreign currency costs are recognized as a component of cost of sales in the same period as the related cost is recognized. Our foreign currency transactions hedged with cash flow hedges as of June 30, 2018, are expected to occur within 1 month to 48 months.

Derivative instruments designated as cash flow hedges must be de-designated as hedges when it is probable the forecasted hedged transaction will not occur in the initially identified time period or within a subsequent two-month time period. Deferred gains and losses in AOCI associated with such derivative instruments are reclassified immediately into other expense. Any subsequent changes in fair value of such derivative instruments are reflected in other expense unless they are re-designated as hedges of other transactions.

Currency option derivative contracts not designated for hedge accounting consist principally of certain option contracts to purchase the Polish Zloty and the Euro and a Euro-U.S. dollar cross currency swap.

Redeemable Preferred Stock Embedded Derivative

We have determined that the conversion option embedded in Series A redeemable preferred stock is required to be accounted for separately from the Series A redeemable preferred stock as a derivative liability. Separation of the conversion option as a derivative liability is required because its economic characteristics are considered more akin to an equity instrument and therefore the conversion option is not considered to be clearly and closely related to the economic characteristics of the redeemable preferred stock. This is because the economic characteristics of the redeemable preferred stock are considered more akin to a debt instrument due to the fact that the shares are redeemable at the holder’s option, the redemption value is significantly greater than the face amount, the shares carry a fixed mandatory dividend and the stock price necessary to make conversion more attractive than redemption ($56.324) is significantly greater than the price at the date of issuance ($19.05), all of which lead to the conclusion that redemption is more likely than conversion. For additional information on the redeemable preferred stock, see Note 14, “Redeemable Preferred Shares.”

We also have determined that the early redemption option upon the occurrence of a redemption event (e.g. change of control, etc.) must also be bifurcated and accounted for separately from the redeemable preferred stock at fair value, because the debt host contract involves a substantial discount (face of $150.0 million as compared to the redemption value of $300.0 million) and exercise of the early redemption option would accelerate the holder’s option to redeem the shares.

15

Accordingly, we have recorded an embedded derivative liability representing the combined fair value of the right of holders to receive common stock upon conversion of Series A redeemable preferred stock at any time (the “conversion option”) and the right of the holders to exercise their early redemption option upon the occurrence of a redemption event (the “early redemption option”). The embedded derivative liability is adjusted to reflect fair value at each period end with changes in fair value recorded in the “Change in fair value of redeemable preferred stock embedded derivative” financial statement line item of the company’s condensed consolidated statements of operations (see “Note 14, “Redeemable Preferred Shares”).

A binomial option pricing model is used to estimate the fair value of the conversion and early redemption options embedded in the redeemable preferred stock. The binomial model utilizes a “decision tree” whereby future movement in the company’s common stock price is estimated based on a volatility factor. The binomial option pricing model requires the development and use of assumptions. These assumptions include estimated volatility of the value of our common stock, assumed possible conversion or early redemption dates, an appropriate risk-free interest rate, risky bond rate and dividend yield.

The expected volatility of the company’s equity is estimated based on the historical volatility of our common stock. The assumed base case term used in the valuation model is the period remaining until May 22, 2024 (the earliest date at which the holder may exercise its unconditional redemption option). A number of other scenarios incorporate earlier redemption dates to address the possibility of early redemption upon the occurrence of a redemption event. The risk-free interest rate is based on the yield on the U.S. Treasury zero coupon yield curve with a remaining term equal to the expected term of the conversion and early redemption options. The significant assumptions utilized in the company’s valuation of the embedded derivative at June 30, 2018 are as follows: valuation scenario terms between 3.50 and 5.89 years, volatility of 33 percent, risk-free rate of 2.7 percent to 2.8 percent related to the respective assumed terms, a risky bond rate of 19.3 percent and a dividend yield of 2.0 percent.

Based on the foregoing assumptions, the fair value of the redeemable preferred stock embedded derivative liability at June 30, 2018 is $8.4 million and the change in fair value of redeemable preferred stock embedded derivative liability during the six months ended June 30, 2018 was $3.7 million, mainly due to the increase in our stock price during that period.

The following tables display the fair value of derivatives by balance sheet line item at June 30, 2018 and December 31, 2017:

16

The following table summarizes the notional amount and estimated fair value of our derivative financial instruments:

Notional amounts are presented on a gross basis. The notional amounts of the derivative financial instruments do not represent amounts exchanged by the parties and, therefore, are not a direct measure of our exposure to the financial risks described above. The amounts exchanged are calculated by reference to the notional amounts and by other terms of the derivatives, such as interest rates, foreign currency exchange rates or commodity volumes and prices.

The following table provides the impact of derivative instruments designated as cash flow hedges on our consolidated statement of operations:

17

Note 7 – Business Segments

As a result of the Acquisition, the company expanded into the European market and extended its customer base to include the principal European OEMs. As a consequence, we have realigned our executive management structure, organization and operations to focus on our performance in our North American and European regions. In accordance with the requirements of ASC Topic 280, “Segment Reporting,” we have concluded that our North American and European businesses represent separate operating segments in view of significantly different markets, customers and products within each of these regions. Each operating segment has discrete financial information which is evaluated regularly by the company’s CEO in determining resource allocation and assessing performance. Within each of these regions, the company’s markets, customers, products and production processes are similar and production can be readily transferred between production facilities. Moreover, our business within each region leverages common systems, processes and infrastructure.

18

Accordingly, North America and Europe comprise the company’s operating segments for purposes of segment reporting.

19

Geographic information

Net sales by geographic location is as follows:

Note 8 – Short-Term Investments

Cash and Cash Equivalents

The company’s cash and cash equivalents include certificates of deposit and fixed deposits with original maturities of three months or less. Certificates of deposit and fixed deposits whose original maturity is greater than three months and is one year or less are classified as short-term investments and certificates of deposit and fixed deposits whose maturity is greater than one year at the balance sheet date are classified as non-current assets in our condensed consolidated balance sheets. The purchase of any certificates of deposit or fixed deposits that are classified as short-term investments or non-current assets appear in the investing section of our condensed consolidated statements of cash flows.

Restricted Deposits

We purchase certificates of deposit that mature within twelve months and are used to secure or collateralize letters of credit securing our workers’ compensation obligations. As of June 30, 2018 and December 31, 2017, certificates of deposit totaling $0.8 million were restricted in use and were classified as short-term investments on our condensed consolidated balance sheets.

Service wheel and supplies inventory included in other non-current assets in the condensed consolidated balance sheets totaled $9.5 million and $8.1 million at June 30, 2018 and December 31, 2017, respectively. Included in raw materials were operating supplies and spare parts totaling $13.7 million and $12.5 million at June 30, 2018 and December 31, 2017, respectively.

20