Teera-Mongkol Industry Public Company Limited, together with its subsidiaries, manufactures and distributes electrical equipment in Thailand. It operates through two segments, Manufacturing and Distributing Electrical Equipment; and Generation and Sell of Electricity. The company offers ballasts, LED lamps, LED bulbs, solar cells, ultraviolet lamps, and fluorescent lamps, as well as gear boxes. It also manufactures sodium and metal halide lamps, as well as transformers. In addition, the company engages in the generation and sell of electricity. It also exports its products. Teera-Mongkol Industry Public Company Limited was incorporated in 2000 and is based in Mueang Samut Sakhon, Thailand.