Notes to the Consolidated Financial Statements

Note 1 - Summary of Significant Accounting Policies

Business

Hudson Technologies, Inc., incorporated under the laws of New York on January 11, 1991, is a refrigerant services company providing innovative solutions to recurring problems within the refrigeration industry. The Company’s operations consist of one reportable segment. The Company's products and services are primarily used in commercial air conditioning, industrial processing and refrigeration systems, and include refrigerant and industrial gas sales, refrigerant management services consisting primarily of reclamation of refrigerants and RefrigerantSide® Services performed at a customer's site, consisting of system decontamination to remove moisture, oils and other contaminants. In addition, the Company’s SmartEnergy OPS ^TM service is a web-based real time continuous monitoring service applicable to a facility’s refrigeration systems and other energy systems. The Company’s Chiller Chemistry® and Chill Smart® services are also predictive and diagnostic service offerings. As a component of the Company’s products and services, the Company also participates in the generation of carbon offset projects. The Company operates principally through its wholly-owned subsidiary, Hudson Technologies Company. Unless the context requires otherwise, references to the “Company”, “Hudson”, “we", “us”, “our”, or similar pronouns refer to Hudson Technologies, Inc. and its subsidiaries.

In preparing the accompanying consolidated financial statements, and in accordance with ASC855-10 “Subsequent Events”, the Company’s management has evaluated subsequent events through the date that the financial statements were filed.

In the opinion of management, all estimates and adjustments considered necessary for a fair presentation have been included and all such adjustments were normal and recurring.

Consolidation

The consolidated financial statements represent all companies of which Hudson directly or indirectly has majority ownership or otherwise controls. Significant intercompany accounts and transactions have been eliminated. The Company's consolidated financial statements include the accounts of wholly-owned subsidiaries Hudson Holdings, Inc. and Hudson Technologies Company. The Company does not present a statement of comprehensive income as its comprehensive income is the same as its net income.

Fair Value of Financial Instruments

The carrying values of financial instruments including trade accounts receivable and accounts payable approximate fair value at December 31, 2015 and December 31, 2014, because of the relatively short maturity of these instruments. The carrying value of short and long-term debt approximates fair value, due to the variable rate nature of the debt, as of December 31, 2015 and December 31, 2014.

Credit Risk

Financial instruments, which potentially subject the Company to concentrations of credit risk, consist principally of temporary cash investments and trade accounts receivable. The Company maintains its temporary cash investments in highly-rated financial institutions and, at times, the balances exceed FDIC insurance coverage. The Company's trade accounts receivable are primarily due from companies throughout the United States. The Company reviews each customer's credit history before extending credit.

The Company establishes an allowance for doubtful accounts based on factors associated with the credit risk of specific accounts, historical trends, and other information. The carrying value of the Company’s accounts receivable is reduced by the established allowance for doubtful accounts. The allowance for doubtful accounts includes any accounts receivable balances that are determined to be uncollectible, along with a general reserve for the remaining accounts receivable balances. The Company adjusts its reserves based on factors that affect the collectability of the accounts receivable balances.

For the year ended December 31, 2015, two customers each accounted for 10% or more of the Company’s revenues and, in the aggregate these two customers accounted for 33% of the Company’s revenues. At December 31, 2015, there were no outstanding receivables from these customers.

For the year ended December 31, 2014, two customers each accounted for 10% or more of the Company’s revenues and, in the aggregate these two customers accounted for 25% of the Company’s revenues. At December 31, 2014, there were $688,000 in outstanding receivables from these customers.

The loss of a principal customer or a decline in the economic prospects of and/or a reduction in purchases of the Company's products or services by any such customer could have a material adverse effect on the Company's operating results and financial position.

Cash and Cash Equivalents

Temporary investments with original maturities of ninety days or less are included in cash and cash equivalents.

Inventories

Inventories, consisting primarily of refrigerant products available for sale, are stated at the lower of cost, on a first-in first-out basis, or market. Where the market price of inventory is less than the related cost, the Company may be required to write down its inventory through a lower of cost or market adjustment, the impact of which would be reflected in cost of sales on the Consolidated Statements of Operations. Any such adjustment would be based on management’s judgment regarding future demand and market conditions and analysis of historical experience.

Property, Plant and Equipment

Property, plant and equipment are stated at cost, including internally manufactured equipment. The cost to complete equipment that is under construction is not considered to be material to the Company's financial position. Provision for depreciation is recorded (for financial reporting purposes) using the straight-line method over the useful lives of the respective assets. Leasehold improvements are amortized on a straight-line basis over the shorter of economic life or terms of the respective leases. Costs of maintenance and repairs are charged to expense when incurred.

Due to the specialized nature of the Company's business, it is possible that the Company's estimates of equipment useful life periods may change in the future.

Goodwill

Goodwill represents the excess of the purchase price over the fair value of the net assets acquired in business combinations accounted for under the purchase method of accounting. The Company performed the annual goodwill impairment assessment using a qualitative approach to determine whether it is more likely than not that the fair value of goodwill is less than its carrying value. In performing the qualitative assessment, we identify and consider the significance of relevant key factors, events, and circumstances that affect the fair value of our goodwill. These factors include external factors such as macroeconomic, industry, and market conditions, as well as entity-specific factors, such as our actual and planned financial performance. If the results of the qualitative assessment conclude that it is not more likely than not that the fair value of goodwill exceeds its carrying value, additional quantitative impairment testing is performed.

Revenues and Cost of Sales

Revenues are recorded upon completion of service or product shipment and passage of title to customers in accordance with contractual terms. The Company evaluates each sale to ensure collectability. In addition, each sale is based on an arrangement with the customer and the sales price to the customer is fixed. License fees are recognized over the period of the license based on the respective performance measurements associated with the license. Royalty revenues are recognized when earned. Cost of sales is recorded based on the cost of products shipped or services performed and related direct operating costs of the Company's facilities. To the extent that the Company charges its customers shipping fees, such amounts are included as a component of revenue and the corresponding costs are included as a component of cost of sales.

The Company's revenues are derived from refrigerant and reclamation sales and RefrigerantSide® Services, including license and royalty revenues. The revenues for each of these lines are as follows:

Income Taxes

The Company utilizes the asset and liability method for recording deferred income taxes, which provides for the establishment of deferred tax asset or liability accounts based on the difference between tax and financial reporting bases of certain assets and liabilities. The tax benefit associated with the Company's net operating loss carry forwards (“NOLs”) is recognized to the extent that the Company is expected to recognize future taxable income. The Company assesses the recoverability of its deferred tax assets based on its expectation that it will recognize future taxable income and adjusts its valuation allowance accordingly. As of December 31, 2015 and 2014, the net deferred tax asset was $3,663,000 and $6,428,000, respectively.

Certain states either do not allow or limit NOLs and as such the Company will be liable for certain state taxes. To the extent that the Company utilizes its NOLs, it will not pay tax on such income but may be subject to the federal alternative minimum tax. In addition, to the extent that the Company’s net income, if any, exceeds the annual NOL limitation it will pay income taxes based on existing statutory rates. Moreover, as a result of a “change in control”, as defined by the Internal Revenue Service, the Company’s ability to utilize its existing NOLs is subject to certain annual limitations. Approximately $6,750,000 of the Company’s $9,000,000 of NOLs are subject to annual limitations of $1,300,000.

As a result of an Internal Revenue Service audit, the 2013 and prior federal tax years have been closed. The Company operates in many states throughout the United States and, as of December 31, 2015, the various states’ statutes of limitations remain open for tax years subsequent to 2009. The Company recognizes interest and penalties, if any, relating to income taxes as a component of the provision for income taxes.

The Company evaluates uncertain tax positions, if any, by determining if it is more likely than not to be sustained upon examination by the taxing authorities. As of December 31, 2015 and 2014, the Company had no uncertain tax positions.

Income per Common and Equivalent Shares

If dilutive, common equivalent shares (common shares assuming exercise of options and warrants) utilizing the treasury stock method are considered in the presentation of diluted earnings per share. The reconciliation of shares used to determine net income per share is as follows (dollars in thousands):

During the years ended December 31, 2015 and 2014, certain options and warrants aggregating 106,290 and 4,449,624 shares, respectively, have been excluded from the calculation of diluted shares, due to the fact that their effect would be anti-dilutive.

Estimates and Risks

The preparation of financial statements in conformity with generally accepted accounting principles in the United States requires management to make estimates and assumptions that affect reported amounts of certain assets and liabilities, the disclosure of contingent assets and liabilities, and the results of operations during the reporting period. Actual results could differ from these estimates.

The Company utilizes both internal and external sources to evaluate potential current and future liabilities for various commitments and contingencies. In the event that the assumptions or conditions change in the future, the estimates could differ from the original estimates.

Several of the Company's accounting policies involve significant judgments, uncertainties and estimations. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities. Actual results may differ from these estimates under different assumptions or conditions. To the extent that actual results differ from management's judgments and estimates, there could be a material adverse effect on the Company. On a continuous basis, the Company evaluates its estimates, including, but not limited to, those estimates related to its allowance for doubtful accounts, inventory reserves, and valuation allowance for the deferred tax assets relating to its NOLs and commitments and contingencies. With respect to accounts receivable, the Company estimates the necessary allowance for doubtful accounts based on both historical and anticipated trends of payment history and the ability of the customer to fulfill its obligations. For inventory, the Company evaluates both current and anticipated sales prices of its products to determine if a write down of inventory to net realizable value is necessary. In determining the Company’s valuation allowance for its deferred tax assets, the Company assesses its ability to generate taxable income in the future.

The Company participates in an industry that is highly regulated, and changes in the regulations affecting our business could affect our operating results. Currently the Company purchases virgin hydrochlorofluorocarbon (“HCFC”) and hydrofluorocarbon (“HFC”) refrigerants and reclaimable, primarily HCFC, HFC and chlorofluorocarbon (“CFC”), refrigerants from suppliers and its customers. Effective January 1, 1996, the Clean Air Act (the “Act”) prohibited the production of virgin CFC refrigerants and limited the production of virgin HCFC refrigerants. Effective January 2004, the Act further limited the production of virgin HCFC refrigerants and federal regulations were enacted which established production and consumption allowances for HCFC refrigerants which imposed limitations on the importation of certain virgin HCFC refrigerants. Under the Act, production of certain virgin HCFC refrigerants is scheduled to be phased out during the period 2010 through 2020, and production of all virgin HCFC refrigerants is scheduled to be phased out by 2030. In April 2013, the Environmental Protection Agency (“EPA”) published a final rule providing for the production or importation of 63 million and 51 million pounds of HCFC-22 in 2013 and 2014, respectively. In October 2014, the EPA published a final rule providing further reductions in the production and consumption allowances for virgin HCFC refrigerants for the years 2015 through 2019 (the “Final Rule”). In the Final Rule, the EPA has established a linear draw down for the production or importation of virgin HCFC-22 that started at approximately 22 million pounds in 2015 and reduces by approximately 4.5 million pounds each year and ends at zero in 2020.

To the extent that the Company is unable to source sufficient quantities of refrigerants or is unable to obtain refrigerants on commercially reasonable terms or experiences a decline in demand and/or price for refrigerants sold by the Company, the Company could realize reductions in revenue from refrigerant sales, which could have a material adverse effect on its operating results and its financial position.

The Company is subject to various legal proceedings. The Company assesses the merit and potential liability associated with each of these proceedings. In addition, the Company estimates potential liability, if any, related to these matters. To the extent that these estimates are not accurate, or circumstances change in the future, the Company could realize liabilities, which could have a material adverse effect on its operating results and its financial position.

Impairment of Long-lived Assets

The Company reviews long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of the assets to the future net cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. Assets to be disposed of are reported at the lower of the carrying amount or fair value less the cost to sell.

Recent Accounting Pronouncements

In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers (Topic 606).” The core principle of ASU 2014-09 is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve that core principle, an entity should apply the following steps: (1) identify the contract(s) with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to the performance obligations in the contract; and (5) recognize revenue when (or as) the entity satisfies a performance obligation. The guidance also specifies the accounting for some costs to obtain or fulfill a contract with a customer. The new standard also will result in enhanced disclosures about revenue, provide guidance for transactions that were not previously addressed comprehensively (for example, service revenue and contract modifications) and improve guidance for multiple-element arrangements. For a public entity, the amendments in this Update are effective for annual reporting periods beginning after December 15, 2017, including interim periods within that reporting period. Early application is not permitted. An entity should apply the amendments in ASU 2014-09 either retrospectively to each prior reporting period presented or retrospectively with the cumulative effect of initially applying ASU 2014-09 recognized at the date of initial application. The Company is currently evaluating the effects of ASU 2014-09 and therefore cannot estimate the effects, if any, on historical or future revenue recognition at this time.

In April 2015, the FASB issued ASU 2015-03, “Interest - Imputation of Interest (Subtopic 835-30) - Simplifying the Presentation of Debt Issuance Costs.” ASU 2015-03 requires that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. For public business entities, the amendments in ASU 2015-03 are effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years, with early adoption permitted for financial statements that have not been previously issued. An entity should apply the new guidance on a retrospective basis, wherein the balance sheet of each individual period presented should be adjusted to reflect the period-specific effects of applying the new guidance. Upon transition, an entity is required to comply with the applicable disclosures for a change in an accounting principle. These disclosures include the nature of and reason for the change in accounting principle, the transition method, a description of the prior-period information that has been retrospectively adjusted, and the effect of the change on the financial statement line items (that is, debt issuance cost asset and the debt liability). The adoption of ASU 2015-03 will have no impact on the Company’s results of operations and an immaterial impact on the Company’s Balance Sheets.

In September 2015, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update No. 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-Period Adjustments, or ASU 2015-16. This amendment requires the acquirer in a business combination to recognize in the reporting period in which adjustment amounts are determined, any adjustments to provisional amounts that are identified during the measurement period, calculated as if the accounting had been completed at the acquisition date. Prior to the issuance of ASU 2015-16, an acquirer was required to restate prior period financial statements as of the acquisition date for adjustments to provisional amounts. The amendments in ASU 2015-16 are to be applied prospectively upon adoption. The Company adopted ASU 2015-16 in the fourth quarter of 2015. The adoption of the provisions of ASU 2015-16 did not have a material impact on its results of operations or financial position.

In November 2015, the FASB issued ASU 2015-17, “Income Taxes (Topic 740) - Balance Sheet Classification of Deferred Taxes.” ASU 2015-17 requires that deferred tax liabilities and assets be classified as noncurrent in a classified statement of financial position. The amendments in ASU 2015-17 apply to all entities that present a classified statement of financial position. The current requirement that deferred tax liabilities and assets of a tax-paying component of an entity be offset and presented as a single amount is not affected. For public business entities, the amendments in ASU 2015-17 are effective for financial statements issued for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Earlier application is permitted for all entities as of the beginning of an interim or annual reporting period.

Under ASU 2016-02, a lessee should recognize in the statement of financial position a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term. For leases with a term of 12 months or less, a lessee is permitted to make an accounting policy election by class of underlying asset not to recognize lease assets and lease liabilities. If a lessee makes this election, it should recognize lease expense for such leases generally on a straight-line basis over the lease term.

For finance leases, a lessee is required to do the following: 1. Recognize a right-of-use asset and a lease liability, initially measured at the present value of the lease payments, in the statement of financial position; 2. Recognize interest on the lease liability separately from amortization of the right-of-use asset in the statement of comprehensive income; and3. Classify repayments of the principal portion of the lease liability within financing activities and payments of interest on the lease liability and variable lease payments within operating activities in the statement of cash flows.

For operating leases, a lessee is required to do the following:1. Recognize a right-of-use asset and a lease liability, initially measured at the present value of the lease payments, in the statement of financial position; 2. Recognize a single lease cost, calculated so that the cost of the lease is allocated over the lease term on a generally straight-line basis; and 3. Classify all cash payments within operating activities in the statement of cash flows.

In transition, lessees and lessors are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. The modified retrospective approach includes a number of optional practical expedients that entities may elect to apply. These practical expedients relate to the identification and classification of leases that commenced before the effective date, initial direct costs for leases that commenced before the effective date, and the ability to use hindsight in evaluating lessee options to extend or terminate a lease or to purchase the underlying asset. An entity that elects to apply the practical expedients will, in effect, continue to account for leases that commence before the effective date in accordance with previous GAAP unless the lease is modified, except that lessees are required to recognize a right-of-use asset and a lease liability for all operating leases at each reporting date based on the present value of the remaining minimum rental payments that were tracked and disclosed under previous GAAP.

For public entities, ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early application of the amendments in this Update is permitted. The Company is currently evaluating the impact of the adoption of ASU 2016-02 on its consolidated financial statements.

Note 2 - Income taxes

Income tax expense (benefit) for the years ended December 31, 2015 and 2014 was $2,944,000 and ($906,000), respectively. The income tax expense (benefit) for each of the years ended December 31, 2015 and 2014 were for federal and state income tax at statutory rates applied to the pre-tax income (loss) for each of the periods.

The following summarizes the (benefit) / provision for income taxes:

Reconciliation of the Company's actual tax rate to the U.S. Federal statutory rate is as follows:

As of December 31, 2015, the Company had NOL's of approximately $9,000,000 expiring through 2034. Approximately $6,750,000 of the Company’s $9,000,000 of NOL’s are subject to annual limitations of $1,300,000.

Elements of deferred income tax assets (liabilities) are as follows:

The Company considered its projected future taxable income, and associated annual limitations, in determining the amount of deferred tax assets to recognize. The Company believes that given the extended time period that it may recognize its deferred tax assets, it is more likely than not it will realize the benefit of these assets prior to their expiration.

Note 3 - Trade accounts receivable - net

At December 31, 2015 and 2014, trade accounts receivable are net of reserves for doubtful accounts of $335,000 and $244,000, respectively.

Depreciation expense for the years ended December 31, 2015 and 2014 was $1,560,000 and $900,000, respectively.

Note 6 – Goodwill and intangible assets

Goodwill represents the excess of the purchase price over the fair value of the net assets acquired in business combinations accounted for under the purchase method of accounting. The Company performed the annual goodwill impairment assessment using a qualitative approach to determine whether it is more likely than not that the fair value of goodwill is less than its carrying value. In performing the qualitative assessment, we identify and consider the significance of relevant key factors, events, and circumstances that affect the fair value of our goodwill. These factors include external factors such as macroeconomic, industry, and market conditions, as well as entity-specific factors, such as our actual and planned financial performance. If the results of the qualitative assessment conclude that it is not more likely than not that the fair value of goodwill exceeds its carrying value, additional quantitative impairment testing is performed.

The impairment test was performed at the operating segment level as the acquired businesses have been fully integrated into our existing structure. Based on the results of the impairment assessment performed, we concluded that it is more likely than not that the fair value of our goodwill significantly exceeds the carrying value.

At December 31, 2015 the Company had $856,000 of goodwill, of which $435,000 is attributable to the acquisition of Polar Technologies, LLC and $421,000 is attributable to the acquisition of a supplier of refrigerants and compressed gases.

The Company’s other intangible assets consist of the following:

Intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset or asset group may not be recoverable. No impairments were recognized for the years ended December 31, 2015 and December 31, 2014.

The amortization of intangible assets for the years ended December 31, 2015 and December 31, 2014 was $512,000 and $79,000 respectively. Future estimated amortization expense is as follows: 2016 - $503,000, 2017 - $478,000, 2018 - $444,000, 2019 - $444,000, 2020 - $444,000 and thereafter - $1,474,000.

Bank Credit Line

On June 22, 2012, a subsidiary of Hudson entered into a Revolving Credit, Term Loan and Security Agreement (the “PNC Facility”) with PNC Bank, National Association, as agent (“Agent” or “PNC”), and such other lenders as may thereafter become a party to the PNC Facility. Under the terms of the PNC Facility, as amended by the First Amendment to the PNC Facility, dated February 15, 2013, Hudson may borrow up to a maximum of $40,000,000 consisting of a term loan in the principal amount of $4,000,000 and revolving loans in a maximum amount up to $36,000,000. Amounts borrowed under the PNC Facility may be used by Hudson for working capital needs and to reimburse drawings under letters of credit. Fees and expenses relating to the creation of the PNC Facility of approximately $38,000 are being amortized over the life of the loan. At December 31, 2015, total borrowings under the PNC Facility were approximately $24,227,000, and there was approximately $15,773,000 available to borrow under the revolving line of credit. The effective interest rate under the PNC Facility was 3.75% at December 31, 2015.

Interest on loans under the PNC Facility is payable in arrears on the first day of each month with respect to loans bearing interest at the domestic rate (as set forth in the PNC Facility) and at the end of each interest period with respect to loans bearing interest at the Eurodollar Rate (as defined in the PNC Facility) or, for Eurodollar Rate Loans (as defined in the PNC Facility) with an interest period in excess of three months, at the earlier of (a) each three months from the commencement of such Eurodollar Rate Loan or (b) the end of the interest period. Interest charges with respect to loans are computed on the actual principal amount of loans outstanding during the month at a rate per annum equal to (A) with respect to Domestic Rate Loans (as defined in the PNC Facility), the sum of the Alternate Base Rate (as defined in the PNC Facility) plus one half of one percent (.50%) and (B) with respect to Eurodollar Rate Loans, the sum of the Eurodollar Rate plus two and one quarter of one percent (2.25%).

Hudson granted to PNC, for itself, and as agent for such other lenders as may thereafter become a lender under the PNC Facility, a security interest in Hudson’s receivables, intellectual property, general intangibles, inventory and certain other assets.

The PNC Facility contains certain financial and non-financial covenants relating to Hudson, including limitations on Hudson’s ability to pay dividends on common stock or preferred stock, and also includes certain events of default, including payment defaults, breaches of representations and warranties, covenant defaults, cross-defaults to other obligations, events of bankruptcy and insolvency, certain ERISA events, judgments in excess of specified amounts, impairments to guarantees and a change of control. The PNC Facility contains a financial covenant to maintain at all times a Fixed Charge Coverage Ratio of not less than 1.10 to 1.00, tested quarterly on a rolling twelve month basis. Fixed Charge Coverage Ratio is defined in the PNC Facility, with respect to any fiscal period, as the ratio of (a) EBITDA of Hudson for such period, minus unfinanced capital expenditures (as defined in the PNC Facility) made by Hudson during such period, minus the aggregate amount of cash taxes paid by Hudson during such period, minus the aggregate amount of dividends and distributions made by Hudson during such period, minus the aggregate amount of payments made with cash by Hudson to satisfy soil sampling and reclamation related to environmental cleanup at the Company’s former Hillburn, NY facility during such period (to the extent not already included in the calculation of EBITDA as determined by the Agent) to (b) the aggregate amount of all principal payments due and/or made, except principal payments related to outstanding revolving advances with regard to all funded debt (as defined in the PNC Facility) of Hudson during such period, plus the aggregate interest expense of Hudson during such period. EBITDA as defined in the PNC Facility shall mean for any period the sum of (i) earnings before interest and taxes for such period plus (ii) depreciation expenses for such period, plus (iii) amortization expenses for such period, plus (iv) non-cash charges.

On October 25, 2013, the Company entered into the Second Amendment to the PNC facility (the “Second PNC Amendment”) which, among other things, waived the requirement to comply with the minimum fixed charge coverage ratio covenant of 1.10 to 1.00 for the fiscal quarter ended September 30, 2013, under the PNC Facility, and suspended the minimum fixed charge ratio covenant until the quarterly period ended March 31, 2015.

On July 2, 2014, the Company entered into the Third Amendment to the PNC Facility (the “Third PNC Amendment”) which, among other things, extended the term of PNC Facility. Pursuant to the Third PNC Amendment, which was effective June 30, 2014, the Termination Date of the PNC Facility (as defined in the PNC Facility) has been extended to June 30, 2018.

On July 1, 2015, the Company entered into the Fourth Amendment to the PNC Facility (the “Fourth PNC Amendment”). The Fourth PNC Amendment redefined the “Revolving Interest Rate” as well as the “Term Loan Rate” (as defined in the PNC Facility) as follows:

“Revolving Interest Rate” shall mean an interest rate per annum equal to (a) the sum of the Alternate Base Rate (as defined in the PNC Facility) plus one half of one percent (.50%) with respect to Domestic Rate Loans and (b) the sum of the Eurodollar Rate plus two and one quarter of one percent (2.25%) with respect to the Eurodollar Rate Loans.

“Term Loan Rate” shall mean an interest rate per annum equal to (a) the sum of the Alternate Base Rate plus one half of one percent (.50%) with respect to the Domestic Rate Loans and (b) the sum of the Eurodollar Rate plus two and one quarter of one percent (2.25%) with respect to Eurodollar Rate Loans.

The Company was in compliance with all covenants, as amended, under the PNC Facility as of December 31, 2015. The Company’s ability to comply with these covenants in future quarters may be affected by events beyond the Company’s control, including general economic conditions, weather conditions, regulations and refrigerant pricing. Although we expect to remain in compliance with all covenants in the PNC Facility, as amended, depending on our future operating performance and general economic conditions, we cannot make any assurance that we will continue to be in compliance.

The commitments under the PNC Facility will expire and the full outstanding principal amount of the loans, together with accrued and unpaid interest, are due and payable in full on June 30, 2018, unless the commitments are terminated for any reason or the outstanding principal amount of the loans are accelerated sooner following an event of default.

Building and Land Mortgage

On June 1, 2012, the Company entered into a mortgage note with Busey Bank for $855,000. The note bears interest at the fixed rate of 4% per annum, amortizing over 60 months and maturing on June 1, 2017. The mortgage note is secured by the Company’s land and building located in Champaign, Illinois. At December 31, 2015 the principal balance of this mortgage note was $260,000.

Vehicle and Equipment Loans

The Company has entered into various vehicle and equipment loans. These loans are payable in 60 monthly payments through March 2020 and bear interest ranging from 2.9% to 6.7%.

Scheduled maturities of the Company's long-term debt and capital lease obligations are as follows:

Capital Lease Obligations

The Company rents certain equipment with a net book value of approximately $296,000 at December 31, 2015 under leases which have been classified as capital leases. Scheduled future minimum lease payments under capital leases net of interest are as follows:

Note 8 - Stockholders' equity

On July 7, 2010, the Company sold 2,737,500 units, with the aggregate units consisting of 2,737,500 shares of the Company’s common stock and warrants to purchase 1,368,750 shares, at a price of $2.00 per unit in a registered direct offering (the “2010 Offering”). The warrants issued as part of the 2010 Offering have an exercise price of $2.60 per share and are exercisable for a five-year period, which commenced on January 7, 2011. The net proceeds pursuant to the 2010 Offering were approximately $4,900,000. The value of the aggregate number of warrants issued pursuant to the 2010 Offering was approximately $1,300,000 and such amount was charged as a component of stockholders’ equity to additional paid-in capital.

Effective as of March 4, 2011, the Company re-purchased warrants to purchase 150,000 shares of the Company’s common stock, at a price of $0.60 per share, which warrants were issued in connection with the 2010 Offering.

On March 7, 2011, the remaining 1,218,750 warrants issued in connection with the 2010 Offering were amended upon consent of the holders of more than two-thirds of the remaining warrants, to among other things, extend the expiration date of the warrants to July 7, 2016.

On June 6, 2014 the Company entered into an Underwriting Agreement with an investment banking firm for itself and as representative for two other investment banking firms (collectively, the “Underwriters”), in connection with an underwritten offering (the “Offering”) of 6,000,000 shares of the Company’s common stock, par value $0.01 per share (the “Firm Shares”). Pursuant to the Underwriting Agreement, the Company agreed to sell to the Underwriters, and the Underwriters agreed to purchase from the Company, an aggregate of 6,000,000 shares of common stock at a price of $2.3375 per share, and the price to the public was $2.50 per share. Pursuant to the Underwriting Agreement, the Company also granted the Underwriters a 30day option to purchase up to 900,000 additional shares of its common stock to cover over-allotments, if any. The Company also agreed to reimburse certain expenses incurred by the Underwriters in the Offering.

The closing of the Offering was held on June 11, 2014, at which time, the Company sold 6,900,000 shares of its common stock to the Underwriters (including 900,000 shares to cover over-allotments) at a price of $2.3375 per share, and received gross proceeds of $16,128,750. The Underwriters received reimbursement of expenses of $150,000, and the Company also incurred approximately $400,000 of additional expenses in connection with the Offering.

In January 2016, 44,000 warrants issued in connection with the 2010 offering were exercised at $2.60 per share.

Note 9 - Commitments and contingencies

Rents and operating leases

Hudson utilizes leased facilities and operates equipment under non-cancelable operating leases through August 31, 2018 as follows:

The Company rents properties and various equipment under operating leases. Rent expense for the years ended December 31, 2015 and 2014 totaled approximately $1,215,000 and $830,000, respectively. In addition to the properties above, the Company does at times utilize public warehouse space on a month to month basis. The Company typically enters into short-term leases for the facilities and wherever possible extends the expiration date of such leases.

Future commitments under operating leases are summarized as follows:

Legal Proceedings

On April 1, 1999, the Company reported a release of approximately 7,800 lbs. of R-11 refrigerant (the “1999 Release”), at its former leased facility in Hillburn, NY (the “Hillburn Facility”), which the Company vacated in June 2006.

Since September 2000, last modified in March 2013, the Company signed an Order on Consent with the New York State Department of Environmental Conservation (“DEC”) whereby the Company agreed to operate a remediation system to reduce R-11 refrigerant levels in the groundwater under and around the Hillburn Facility and agreed to perform periodic testing at the Hillburn Facility until remaining groundwater contamination has been effectively abated. The Company accrued, as an expense in its consolidated financial statements, the costs that the Company believes it will incur in connection with its compliance with the Order of Consent through December 31, 2018. There can be no assurance that additional testing will not be required or that the Company will not incur additional costs and such costs in excess of the Company’s estimate may have a material adverse effect on the Company financial condition or results of operations. The Company has exhausted all insurance proceeds available for the 1999 Release under all applicable policies.

In May 2000, the Hillburn facility as a result of the 1999 release, was nominated by EPA for listing on the National Priorities List (“NPL”) pursuant to CERCLA. In September 2003, the EPA advised the Company that it had no current plans to finalize the process for listing of the Hillburn facility on the NPL.

During the year ended December 31, 2014 the Company incurred $53,000 in additional remediation costs in connection with the matters above. There were no costs incurred during the year ended December 31, 2015. There can be no assurance that the ultimate outcome of the 1999 Release will not have a material adverse effect on the Company's financial condition and results of operations. There can be no assurance that the EPA will not change its current plans and seek to finalize the process of listing the Hillburn Facility on the NPL, or that the ultimate outcome of such a listing will not have a material adverse effect on the Company's financial condition and results of operations.

Employment Agreement

The Company has entered into a two-year employment agreement with its Chief Excutive Officer, Kevin J. Zugibe, which currently expires in October 2018 and is automatically renewable for successive two-year terms unless either party gives notice of termination at least ninety days prior to the then expiration date of the then current term. Pursuant to the agreement, Mr. Zugibe is receiving an annual base salary of $384,000 with such increases and bonuses as the Company’s Board of Directors may determine. The Company is the beneficiary of a "key-man" insurance policy on the life of Mr. Zugibe in the amount of $1,000,000.

Note 10 - Share-Based Compensation

Share-based compensation represents the cost related to share-based awards, typically stock options or stock grants, granted to employees, non-employees, officers and directors. Share-based compensation is measured at grant date, based on the estimated aggregate fair value of the award on the grant date, and such amount is charged to compensation expense on a straight-line basis (net of estimated forfeitures) over the requisite service period. For the years 2015 and 2014, the share-based compensation expense of $173,000 and $708,000, respectively, is reflected in general and administrative expenses in the consolidated Statements of Operations.

Share-based awards have historically been made as stock options, and recently during the third quarter 2015 as stock grants, issued pursuant to the terms of the Company’s stock option and stock incentive plans, (collectively, the “Plans”), described below. The Plans may be administered by the Board of Directors or the Compensation Committee of the Board or by another committee appointed by the Board from among its members as provided in the Plans. Presently, the Plans are administered by the Company’s Compensation Committee of the Board of Directors. As of December 31, 2015, the Plans authorized the issuance of stock options to purchase 6,000,000 shares of the Company’s common stock and, as of December 31, 2015 there were 4,439,023 shares of the Company’s common stock available for issuance for future stock option grants or other stock based awards.

Stock option awards, which allow the recipient to purchase shares of the Company’s common stock at a fixed price, are typically granted at an exercise price equal to the Company’s stock price at the date of grant. Typically, the Company’s stock option awards have vested from immediately to two years from the grant date and have had a contractual term ranging from three to ten years.

During the years 2015 and 2014, the Company issued options to purchase 164,506 shares and 1,055,500 shares, respectively. During the years 2015 and 2014, the Company issued stock grants of 9,835 shares and no shares, respectively. As of December 31, 2015 there was $15,000 of unrecognized compensation cost related to non-vested previously granted option awards.

Effective July 25, 1997, the Company adopted its 1997 Employee Stock Option Plan, which was amended on August 19, 1999, (“1997 Plan”) pursuant to which 2,000,000 shares of common stock were reserved for issuance upon the exercise of options designated as either (i) incentive stock options (“ISOs”) under the Internal Revenue Code of 1986, as amended (the “Code”), or (ii) nonqualified options. ISOs could be granted under the 1997 Plan to employees and officers of the Company. Non-qualified options could be granted to consultants, directors (whether or not they are employees), employees or officers of the Company. Stock appreciation rights could also be issued in tandem with stock options. Effective June 11, 2007, the Company’s ability to grant options or stock appreciation rights under the 1997 Plan expired.

Effective September 10, 2004, the Company adopted its 2004 Stock Incentive Plan (“2004 Plan”) pursuant to which 2,500,000 shares of common stock were reserved for issuance (i) upon the exercise of options, designated as either ISOs under the Code or nonqualified options, or (ii) as stock, deferred stock or other stock-based awards. ISOs could be granted under the 2004 Plan to employees and officers of the Company. Non-qualified options, stock, deferred stock or other stock-based awards could be granted to consultants, directors (whether or not they are employees), employees or officers of the Company. Stock appreciation rights could also be issued in tandem with stock options. Effective September 10, 2014, the Company’s ability to grant options or other awards under the 2004 Plan expired.

Effective August 27, 2008, the Company adopted its 2008 Stock Incentive Plan (“2008 Plan”) pursuant to which 3,000,000 shares of common stock were reserved for issuance (i) upon the exercise of options, designated as either ISOs under the Code or nonqualified options, or (ii) as stock, deferred stock or other stock-based awards. ISOs may be granted under the 2008 Plan to employees and officers of the Company. Non-qualified options, stock, deferred stock or other stock-based awards may be granted to consultants, directors (whether or not they are employees), employees or officers of the Company. Stock appreciation rights may also be issued in tandem with stock options. Unless the 2008 Plan is sooner terminated, the ability to grant options or other awards under the 2008 Plan will expire on August 27, 2018.

ISOs granted under the 2008 Plan may not be granted at a price less than the fair market value of the common stock on the date of grant (or 110% of fair market value in the case of persons holding 10% or more of the voting stock of the Company). Nonqualified options granted under the 2008 Plan may not be granted at a price less than the fair market value of the common stock. Options granted under the 2008 Plan expire not more than ten years from the date of grant (five years in the case of ISOs granted to persons holding 10% or more of the voting stock of the Company).

Effective September 17, 2014, the Company adopted its 2014 Stock Incentive Plan (“2014 Plan”) pursuant to which 3,000,000 shares of common stock were reserved for issuance (i) upon the exercise of options, designated as either ISOs under the Code or nonqualified options, or (ii) as stock, deferred stock or other stock-based awards. ISOs may be granted under the 2014 Plan to employees and officers of the Company. Non-qualified options, stock, deferred stock or other stock-based awards may be granted to consultants, directors (whether or not they are employees), employees or officers of the Company. Stock appreciation rights may also be issued in tandem with stock options. Unless the 2014 Plan is sooner terminated, the ability to grant options or other awards under the 2014 Plan will expire on September 17, 2024.

ISOs granted under the 2014 Plan may not be granted at a price less than the fair market value of the common stock on the date of grant (or 110% of fair market value in the case of persons holding 10% or more of the voting stock of the Company). Nonqualified options granted under the 2014 Plan may not be granted at a price less than the fair market value of the common stock. Options granted under the 2014 Plan expire not more than ten years from the date of grant (five years in the case of ISOs granted to persons holding 10% or more of the voting stock of the Company).

All stock options have been granted to employees and non-employees at exercise prices equal to or in excess of the market value on the date of the grant.

The Company determines the fair value of share based awards at the grant date by using the Black-Scholes option-pricing model, and is incorporating the simplified method to compute expected lives of share based awards with the following weighted-average assumptions: