Jiangsu TongLin Electric Co.,Ltd. engages in the research, development, and manufacture of photovoltaic (PV) connection systems, PV power stations, electrical equipment, cables and wires, and industrial automation solutions in China. Its PV connection systems include PV module junction boxes, connectors, wiring harnesses, PV soldering ribbons, and inverters; and electrical equipment comprise cable trays, bus ducts, and switch cabinets. The company also offers system solutions, such as PV combiner boxes; ribbons and tabbing; accessories, such as sealing caps; tools, including spanner wrench tools BIGT and crimping pliers. In addition, it offers biotechnology products, such as liquid fermentation and solid-state material fermentation equipment, D type single tank control systems, animal reactors, bioreactors, microbial agents, biological health products, and water treatment project. The company was founded in 1984 and is based in Yangzhong, China.