ALT Telecom Public Company Limited operates in the telecommunications business in Thailand through itself and its subsidiaries. It also produces, assembles, installs, and distributes electricity meters; sells, installs, and rents solar cells; and sells, installs, maintains, and rents telecommunication networks. Additionally, it leases and manages basic telecommunications infrastructure, designs, sells, and installs foreign object detection vehicles, and sells, installs, and maintains electrical and telecom systems. The company was incorporated in 2001 and is headquartered in Nonthaburi, Thailand.