COTECH Solar, a subsidiary of COTECH SOLAR GROUP LIMITED, founded in Shanghai in 2005, is a vertically integrated manufacturer of solar cells, modules and complete solar systems, with 20 GW shipped to 800+ customers in 120+ countries. Products include N-type TOPCon, HJT and back-contact solar modules up to 730W, LiFePO4 energy storage from balcony kits to 5MWh containers, PV mounting systems, mobile solar power, cleaning robots, solar water pumps, solar lights, solar fans, solar lighting and ventilation. Certified to TÜV, UL, IEC, VDE and CE, with ISO 9001 and ISO 14001 management systems. Scale: 2 production bases, 4 branches, 1.2 GW+ annual module capacity, and a global Top-50 module supplier. Warranty: double-glass modules 15-year product warranty and 30-year linear power warranty (at least 87% at year 30), home storage up to 10 years, and mounting systems up to 25 years. Services: OEM/ODM; a sales engineer replies within 1 working day. Website: https://cotechsolar.com. Address: No.3805 Zhoujiazui Road, SHUFE National University Science Park, Shanghai, P.R. China. Phone: +86-21-35328987. Email: cotechsolartwo@gmail.com.