C.I. Group Public Company Limited manufactures and distributes air conditioning and refrigeration units and parts in Thailand and internationally. The company provides 5MM, aluminum, condenser, water, evaporator coil, and tube-in-tube heat exchanger; and heavy duty air purifiers, air handling units, air cooled condensers, condensing units, unit coolers, air purifier, and SAVE-COOL, an adiabatic liquid cooling for factories. It also offers building envelope products, such as KingZip, a zipped roofing system; K-Dek, a factory manufactured single component system; RW; foilback systems, including gutters, safety systems, light solutions, and specialist fabrications; BENCHMARK and Kingspan insulated products; architectural wall panels; and cold store systems. In addition, the company provides ARII smart solutions, a software solution for energy and environmental meters packs, and cold room packs; and D-Coat and heresite products.Further, the company offers coil replacement and AHU renovation; Blusolutions; M&E design; product development; and cold room/store and smart solutions design and installation services. Additionally, it provides maintenance and inspection services; locomotive construction and maintenance services; construction of electricity production and distribution systems; electric power generation and transmission; and water supply systems; as well as hotel and construction services. The company was founded in 1983 and is headquartered in Pathum Thani, Thailand.