Guangdong Tiancheng Seal Co., Ltd. (hereinafter referred to as "Tiancheng") was established in 2001 (the company's controlling shareholder was the Tiancheng Seal Factory in Rongcheng District, Jieyang City, founded in 1992). The company covers an area of ​​61,326 square meters and has a number of employees. With more than 300 people and more than 60 technical R&D personnel, it is an automotive parts enterprise focusing on the research and development, production, sales and services of automotive series oil seals and rubber seals products. Tiancheng's leading products have an annual production capacity of more than 90 million pieces, and its products cover the field of automotive lubrication and sealing, becoming Changan Automobile, SAIC-GM-Wuling, Dongfeng Xiaokang, Changfuma, FORD (Ford), HONDA (Honda), TOYOTA (Toyota), More than 20 first- and second-level supporting suppliers of automotive parts companies, including PSA (Peugeot Citroen), MAHLE (Mahle), VALEO (Valeo).

Tiancheng has always attached great importance to scientific and technological development, insisted on the path of industry, academia and research, and accumulated strong scientific and technological innovation capabilities. Since 2006, it has been recognized as a "high-tech enterprise", a "provincial automotive oil seal engineering technology research and development center", a "provincial enterprise technology center", a "CNAS (China National Accreditation Committee for Conformity Assessment) Laboratory", a "provincial Private enterprise innovation and industrialization demonstration base", specialized and innovative "little giant" enterprises. In 2016, Tiancheng established a sealed R&D experimental center with international standards; in 2018, in order to better attract outstanding talents in various fields, Tiancheng established a Guangzhou R&D center in Guangzhou; in 2022, Tiancheng established a doctoral workstation to strive to maintain the industry's Advanced technology.

Tiancheng has independent core technology, has passed the "intellectual property management system" certification, and is an intellectual property demonstration enterprise in Guangdong Province. At present, Tiancheng has obtained 34 authorized patents, including 6 invention patents; it has won 2 provincial scientific and technological achievements appraisals, and has won the first prize of municipal scientific and technological progress twice. In February 2021, the "TCH" trademark was included in the Guangdong Province Key Trademark Protection List; in March 2021, the company's "High Mileage and Long-Life Rubber Seals for Automobile Engines" was selected as the 2020 Guangdong Province Famous High-Tech Product. As a member unit of the national industry standard setting organization (secret standard committee, rubber standard committee, sealing device), Tiancheng leads the formulation of one national standard, participates in the formulation of 14 national standards and pre-order standards, and formulates 5 enterprise standards, which are standardized by the national hydraulic pneumatic system. The Technical Committee commended it as a "positive contributor unit to standardize".