OCTG from China: World-Class Seamless Casing, Tubing & Drill Pipe for Global Markets

Published by DY77 Research • Updated May 2026 • Oil Country Tubular Goods

China has emerged as the world's largest producer and exporter of Oil Country Tubular Goods (OCTG), supplying high-quality seamless casing, tubing, and drill pipes to oilfields across the globe. Chinese OCTG manufacturers combine massive production capacity, advanced metallurgical technology, and competitive pricing to serve operators in the Middle East, Africa, Asia, and the Americas. Below we profile the leading Chinese OCTG manufacturers, suppliers, and export companies.

Top OCTG Manufacturers & Exporters from China

Tianjin Pipe Corporation (TPCO)

TPCO is China's largest seamless steel pipe producer and a global leader in OCTG exports. Their products include API 5CT casing, tubing, and line pipes, with extensive shipments to the Middle East, North America, and Southeast Asia.

Baosteel Group

Baosteel produces high-end OCTG for deep and ultra-deep wells, including 13Cr and duplex stainless materials. Their products are trusted by CNPC, Sinopec, and international operators in over 40 countries.

Hengyang Valin Steel Tube Co., Ltd.

Valin Steel specializes in seamless OCTG casing and tubing up to 720mm diameter. They are a major exporter to the Middle East, Africa, and Europe, with strong presence in shale gas and offshore projects.

Jiangsu Changbao Steel Tube Co., Ltd.

Changbao is a premier OCTG exporter focused on high-collapse casing, thermal production tubing, and drill pipes. Their products reach markets in over 50 countries, including the USA, Canada, and GCC nations.

Shandong Molong Petroleum Machinery Co., Ltd.

Molong exports a comprehensive range of OCTG products including casing, tubing, and couplings. Their API-certified products cover grades from J55 to Q125, serving markets across Asia, Africa, and the Americas.

OCTG Suppliers & Trading Companies from China

In addition to the major mills, numerous Chinese OCTG suppliers and trading companies facilitate global exports. Shanghai Baosteel International, SINOPEC International, Jingye Steel, and Zhejiang Jiuli Hi-Tech Metals provide specialized OCTG products including corrosion-resistant alloys and premium threaded connections. Chinese OCTG products are increasingly specified for major international projects, supported by API monograms, ISO certifications, and competitive delivery schedules. With continuous investment in R&D and digital manufacturing, OCTG from China remains a cornerstone of the global oilfield supply chain.