Exhibit 99.1 

Pro forma Condensed Consolidated Financial Statement

Hudson Technologies, Inc. and Subsidiaries

For the Twelve Months Ended December 31, 2017

HUDSON TECHNOLOGIES, INC. AND SUBSIDIARIES

PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

On October 10, 2017, Hudson Technologies, Inc. (together with its subsidiaries, “Hudson” or the “Company”) and its wholly-owned subsidiary, Hudson Holdings, Inc. (“Holdings”) completed the acquisition (the “Acquisition”) from Airgas, Inc. (“Airgas”) of all of the outstanding stock of Airgas-Refrigerants, Inc., a Delaware corporation (“ARI”). On October 11, 2017, ARI changed its name to Aspen Refrigerants, Inc.

At closing, the Company paid net cash consideration of approximately $209 million, which included preliminary post-closing adjustments relating to: (i) changes in the net working capital of ARI as of the closing relative to a net working capital target, (ii) the actual amount of specified types of R-22 refrigerant inventory on hand at closing relative to a target amount thereof, and (iii) other consideration pursuant to the Stock Purchase Agreement.

The cash consideration paid at closing was financed with available cash balances, plus $80 million of borrowings under an enhanced asset based lending facility of $150 million from PNC Bank and a new term loan of $105 million from funds advised by FS Investments and sub-advised by GSO Capital Partners LP.

Basis of Pro Forma Presentation

The unaudited pro forma consolidated statement of operations for the 12 months ended December 31, 2017 is based on the historical financial statements of Hudson and ARI, after giving effect to the cash paid and financing used to consummate the acquisition of ARI as well as certain pro forma adjustments assuming the transaction occurred at January 1, 2017.

The unaudited pro forma consolidated statement of operations for the 12 months ended December 31, 2017 should be read in conjunction with the historical financial statements and accompanying notes contained in the Hudson Technologies, Inc. Annual Report on Form 10-K filed with the Securities and Exchange Commission (SEC) on March 16, 2018.  The unaudited pro forma consolidated statement of operations for the 12 months ended December 31, 2017 is presented for informational purposes only and is not necessarily indicative of the operating results or the financial position that would have been achieved had the acquisition been consummated as of the date indicated or of the results that may be obtained in the future.

Due to the timing of the ARI acquisition, which closed during the fourth quarter of 2017, our estimates of fair values of the assets that we acquired and the liabilities that we assumed are based on information that was available as of the acquisition date of ARI and are preliminary. We are continuing to evaluate the underlying inputs and assumptions used in our valuations, particularly with respect to certain aspects of the acquired inventory and property and equipment. In addition, in accordance with the stock purchase agreement the purchase price remains subject to further working capital adjustment. Accordingly, these preliminary estimates are subject to change during the measurement period, which is the period subsequent to the acquisition date during which the acquiror may adjust the provisional amounts recognized for a business combination, not to exceed one year form the acquisition date.

The following table summarizes the fair values of the assets acquired and liabilities assumed from the ARI acquisition:

Hudson Technologies, Inc. and Subsidiaries  

Unaudited Pro Forma Condensed Consolidated Statement of Operations

12 Months Ended December 31, 2017

(Amounts in thousands, except per share amounts)

See accompanying Notes to Unaudited Pro Forma Condensed Consolidated Statement of Operations

Notes to Unaudited Pro Forma Condensed Consolidated Statement of Operations

The following adjustments have been reflected in the unaudited pro forma consolidated statement of income for the twelve months ended December 31, 2017, as though the Acquisition occurred as of the beginning of the period presented herein: