Handan Zhengda Steel Pipe Group Co., Ltd. (abbreviated as ZDP, formerly Handan Zhengda Manufacture Pipe Co., Ltd.) was established on August 8, 2005, and restructured into a group corporation in 2021. It is a modern integrated enterprise specializing in the manufacturing and sales of high-frequency straight-seam welded pipes, hot-dip galvanized round pipes, spiral seam welded pipes, square & rectangular steel tubes, hot-dip galvanized square & rectangular tubes, steel-plastic composite pipes, and 3PE anti-corrosion pipes. Integrating science, industry, and trade, the company operates four major production bases in Handan, Qian'an, Shanxi, and Yunnan. Since its inception, adhering to the corporate spirit of "Be an upright person and pursue great endeavors" and the founding principle of "scale, standardization, and discipline," ZDP has developed over 20 years into a leading player in the steel pipe industry. It now produces more than 10 million tons annually of various specifications under the renowned "Tianhong" and "Jili" brands. Its sales network covers the entire country and serves global markets, with hot-dip galvanized square & rectangular tubes ranking No.1 in national sales for consecutive years since 2018.
The "Tianhong" and "Jili" series steel pipes are widely used in low-pressure fluid transportation (such as petroleum pipelines, water supply & drainage, firefighting, curtain wall projects, municipal engineering, petrochemicals, gas transmission, and central heating) as well as structural applications (scaffolding, cable threading, steel structures, and mechanical processing).
ZDP has become a preferred supplier to numerous major state-owned enterprises, including China State Construction (CSCEC), China Communications Construction (CCCC), China Power Construction (PowerChina), CNNC, China Railway, China Metallurgical Group (MCC), Sinopec, CNPC, CNOOC, and others. Its domestic sales network spans the whole country, with exports to over 100 countries and regions in Europe, America, Africa, Southeast Asia, etc.
"Committed to development and dedicated to society" has always been ZDP's unwavering mission. Over the years, the company has actively engaged in public welfare, consistently carrying out initiatives such as "Patriotic Support for the Military" double-support co-construction programs and the "Plum Blossom in Full Bloom" student assistance campaign. It has been recognized as an advanced model at provincial and municipal levels for poverty alleviation and hardship relief, and stands as a flagship on Hebei Province's double-support front. In 2023–2024, it was honored on the "National List of Outstanding Employment Cooperation Enterprises for Retired Military Personnel" released by People's Daily, exemplifying the new image of private enterprises in socialist China with Chinese characteristics.
As a leading deep-cultivated enterprise in the steel pipe manufacturing sector, ZDP possesses a national CNAS laboratory and holds titles such as National Quality Integrity Benchmark Enterprise, National Top 100 Quality Inspection Integrity Benchmark Enterprise, National High-tech Enterprise, National Contract-abiding and Credit-valued Enterprise, National Two-integration Management System Certified Enterprise, National Green Factory, National Intellectual Property Advantage Enterprise, China Top 500 Manufacturing Enterprises, China Top 500 Private Enterprises, China Top 500 Brands, Top 100 in Beijing-Tianjin-Hebei Region, Hebei Top 100 Enterprises, Leading Enterprise in Hebei Industrial Clusters, and one of the Top 30 Benchmark Units for Corporate Culture Construction among Chinese Private Enterprises. Its independent brand "Tianhong" has been awarded China Well-known Trademark, Hebei Icon, Hebei Famous Trademark, Hebei High-quality Product, and Hebei Famous Brand Product. The company has successively obtained seven-system certifications from China Classification Society (quality, environment, occupational health & safety, energy, measurement, intellectual property, and carbon management), as well as API 5L certification from the American Petroleum Institute, UL certification from Underwriters Laboratories (USA), and CE certification from the European Union.
