Fruits of Innovation and Craftsmanship, Rewards of Wisdom and Hard Work

We continuously strive for self-improvement, adhering to internationally recognized management practices and standards. Our company has successfully obtained ISO 9001:2015 (Quality Management System), ISO 14001:2015 (Environmental Management System), ISO 45001:2018 (Occupational Health and Safety Management System), and ISO 56001:2013 (Intellectual Property Management System). In 2017, Tongda earned the EN 15085-2 and ISO 3834-2 (Quality Requirements for Fusion Welding of Metallic Materials) certifications, as well as IATF 16949 (Automotive Quality Management System), AAA Measurement Management System, and ISO 56002:2019 (Innovation Management System). Over the years, the company has been recognized with honours such as Jiangsu Provincial Hi-tech Enterprise, a national "Little Giant" for specialized, high-end, and innovation-driven SMEs, a National Manufacturing Single Champion Demonstration Enterprise, and a National Industrial Product Green Design Demonstration Enterprise.Nantong Tongda Silicon Steel Techology Co., Ltd. Test Center was recognized by CNAS (with Registration NO. CNAS L21710)