Shijiazhuang Tonhe Electronics Technologies Co., Ltd. Was founded in 1998 (stock code: 300491). Tonhe is a high-tech enterprise committed to the power electronics industry, technology innovation, product innovation, management innovation, to power electronics industry product research and development, production, sales and service in one, to provide customers with system solutions.

Adhering to the principle of "technology-oriented enterprise" and focusing on the development platform of cutting-edge technology, Tonhe is the first power electronics enterprise to realize the soft switch of power conversion process in China and has accumulated more than 80 patents.

The company's core technology to ensure high efficiency, high reliability, low cost of products, to provide customers with cost-effective products. After more than 20 years of rapid development, the company has formed three major business areas of smart grid, new energy vehicles and military equipment industrial structure, sales network throughout the country more than 20 provinces and autonomous regions, products are exported to overseas. Leading technology advantages, reliable quality assurance and excellent service quality to win the domestic and foreign customers praise.

Our quality management work has passed: IATF16949 system certification, IS09001 quality system certification, ISO14001 environmental management system certification, ISO45001 occupational health and safety management system certification, CE certification.

Tonhe Technology has a first-class EMC laboratory and has been certified by China National Accreditation Service for Conformity Assessment(CNAS); Certified by the National Defense Technology and Industry Laboratory Accreditation Committee(DiLAC). A