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Yantai Baosteel Steel Pipe Co., Ltd. ("Yantai Baosteel" for short) is a subsidiary of Baoshan Iron and Steel Co., Ltd. It was established in June 2007 in accordance with the national iron and steel industry policy and the industrial planning layout of Yantai City. Incorporated in October. The entire project is expected to invest 5 billion yuan and will occupy an area of about 660000㎡  after completion.

The first phase of the Yantai Baosteel project started construction on May 6, 2008, which mainly includes the oil casing heat treatment production line, API standard buckle and corresponding coupling processing lines. It was completed and put into operation at the end of 2009; the second phase of the hot-rolled pipeline will be in 2011 It was completed and put into production in the first half of the year.

TPCO, commonly known as "Great Seamless" by Tianjin Pipe Co., Ltd., is located in Tianjin Binhai New Area and is the largest oil casing production base in China.

Tianjin Pipe Manufacturing Co., Ltd. 

TPCO was established in 1989 and began to produce seamless steel pipes in 1992, In the early stage of construction, the company insisted on a high starting point, high technology, and high standards. It introduced the world's most advanced steelmaking, tube rolling, tube processing and direct reduced iron equipment technology and equipment from Germany, Italy, the United States, Belgium, Britain and other countries at the time. Complete automation system, since it was officially put into production in 1996, it has insisted on pursuing the advanced and never stopped, and has maintained its technological lead through continuous technological transformation.

was established on December 10, 2010, with a registered capital of 98.0 billion RMB. The registration authority: Market Supervision and Administration Bureau of Dongli District, Tianjin. The address is located at No. 396 Jintang Road, Dongli District, Tianjin.