Hudson Technologies, Inc. is a refrigerant services company providing solutions to recurring problems within the refrigeration industry. The Company's products and services are primarily used in commercial air conditioning, industrial processing and refrigeration systems, and include refrigerant 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, RefrigerantSide Services include predictive and diagnostic services for industrial and commercial refrigeration applications, which are designed to predict potential catastrophic problems and identify inefficiencies in an operating system. In December 2012, the Company acquired from Efficiency Technologies, Inc. (ETI) the Efftrack chiller efficiency software, customer list and its related assets.