C.I. Group Public Company Limited (CIG)

C.I. Group Public Company Limited (CIG) is a publicly listed Thai manufacturer specializing in high‑quality coils and heat exchangers for HVAC/R applications. Founded in 1983, it operates three automated factories employing over 1,000 staff and supplies coils to leading air‑conditioner and refrigeration OEMs in the United States and worldwide. CIG’s product portfolio includes water, condenser, evaporator, truck and bus, and custom‑fit coils, as well as complete heat exchangers and micro‑channel solutions for residential, commercial, and industrial systems. Accredited to ISO 9001, UL, and AHRI standards, the company emphasizes precision manufacturing, continuous automation upgrades, and a commitment to being the preferred supplier for HVAC/R engineers across Asia and global markets.