TONGFEI founded in 2001 and listed on the Shenzhen Stock Exchange ChiNext (Stock Code: 300990), is a high-tech enterprise headquartered in Sanhe City, Hebei Province, specializing in the R&D, production, sales, and service of industrial temperature control equipment.

In 2017, the company established ATF, a wholly-owned subsidiary in Germany, followed by the opening of a Beijing branch in 2019. In 2021, TONGFEI achieved its ChiNext listing and relocated to the Sanhe Economic Development Zone. By 2024, the company completed its Northern Headquarters R&D and Production Base, spanning approximately 220,000 square meters and equipped with 22 digital production lines, forming an integrated industrial structure encompassing "R&D-Manufacturing-Sales-Service." In 2023, a service office was established in the United States, with plans to set up branches in Shanghai, Shenzhen, and Hangzhou by 2025, alongside the establishment of a Singapore subsidiary and a production base in Thailand to strengthen its presence in Southeast Asia.

Dedicated to innovation and specialization in industrial temperature control technology, TONGFEI has developed four major product lines: air-cooling products, liquid-cooling products, pure water cooling units, and specialized heat exchangers. These solutions serve a wide range of industries, including CNC equipment, laser processing, power electronics, energy storage, semiconductors, data centers, hydrogen energy, new energy vehicles (charging and battery swapping), medical devices, and oil & gas storage and transportation, continuously expanding its industrial development path.

Since entering the international market in 2009, guided by its global market strategy, TONGFEI has established after-sales service networks across North America, Europe, Japan and South Korea, Southeast Asia, and Australia. The company has also formed strategic partnerships with numerous renowned enterprises worldwide.