Kelington Group Bhd (KGB) is involved in four major businesses, namely; ultra-high purity (UHP) delivery systems, process engineering, general contracting and industrial gasses for various industries such as photovoltaics & solar, pharmaceuticals & biotechnology, industrial gasses and oleochemicals. Some notable clients include Infineon, Panasonic, Taiwan Semiconductor Manufacturing Company (TMSC), Seagate, Western Digital and Biocon.