Waters Corporation (Waters) is an analytical instrument manufacturer that primarily designs, manufactures, sells and services, through its Waters Division, high performance liquid chromatography (HPLC), ultra performance liquid chromatography (UPLC and together with HPLC, referred to as LC) and mass spectrometry (MS) technology systems and support products, including chromatography columns, other consumable products and post-warranty service plans. Through its TA Division (TA), the Company primarily designs, manufactures, sells and services thermal analysis, rheometry and calorimetry instruments. The Company operates in two segments: Waters Division and TA Division. In July 2014, Waters acquired Rapid Evaporative Ionization Mass Spectrometry (REIMS) technology from MediMass Ltd.