Key Players
- APL Apollo Tubes Ltd
- American Cast Iron Pipe Company
- Apollon Steel Inc
- ArcelorMittal SA (Luxembourg)
- Bestar Steel Co. Ltd
- Borusan Mannesmann Boru Sanayi ve Ticaret A.S
- Cangzhou Dagang Pipe Co. Ltd
- Cangzhou Haihua Steel Pipe Co. Ltd
- Cangzhou Spiral Steel Pipe Group Co. Ltd
- Champak Steel & Engg.Co
