QTC Energy Public Company Limited, together with its subsidiaries, engages in the manufacture, sale, and distribution of electric transformers in Thailand and internationally. The company offers oil and dry type, and super low loss transformer products; EV chargers and accessories; and solar products, such as inverters, mono-facia, bi-facial, cables and connectors, and accessories. It also provides scheduled checks and maintenance, transformer repairs and maintenance, transformer oil fill, and transformer rental services; installation of electrical equipment and solar panels; sales and installation of electrical equipment, including PV panels, and solar inverters and cell equipment. In addition, the company is involved in the import and distribution of products and equipment relating to solar cells; and planning the installation, maintenance, inspection, and product and installation warranty. The company was formerly known as QTC Transformers Co., Ltd. and changed its name to QTC Energy Public Company Limited in August 2010. QTC Energy Public Company Limited was founded in 1996 and is headquartered in Bangkok, Thailand.