COTECH Solar is a vertically integrated solar manufacturer founded in Shanghai in 2005 and a key subsidiary of COTECH SOLAR GROUP LIMITED. It designs, manufactures and distributes solar cells, modules and complete systems, and develops PV projects. With two production bases, over 1.2 GW of annual module capacity, and 20 GW shipped to around 800 customers in 120+ countries, it ranks among the Top-50 global PV module suppliers. Products are certified to TÜV, UL, IEC, VDE and CE, with ISO 9001 and ISO 14001 management systems. Its N-type TOPCon, HJT and back-contact modules reach up to 730 W, alongside LiFePO4 storage from balcony kits to 5 MWh containers, PV mounting systems, mobile solar, cleaning robots, water pumps, lighting and ventilation. Bifacial modules carry a 15-year product warranty and a 30-year linear power warranty.