ALT Telecom Public Company Limited, together with its subsidiaries, engages in the manufacture, installation, maintenance, rental, and sale of telecommunication network equipment in Thailand. It operates in three segments: Network Equipment, Electricity Meter and Solar Cell Distribution Business; Network Equipment Installation, Area Rental and Solar Cell Installation and Rental Business; and Network Equipment Rental Business. The company also produces, assembles, installs, and distributes electricity meters; sells, installs, and rents solar cells; leases and manages telecommunication basic structure; and sells, installs, and maintains electrical system and telecom. ALT Telecom Public Company Limited was incorporated in 2001 and is headquartered in Bang Kruai, Thailand.