- TEXMO PIPES AND PRODUCTS LTD
- Main business:
- Caribbean RegionBermuda
- Changshu Seamless Steel Tube Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhangjiagang City Siweida Machinery Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Liaocheng Tongyuan Steel Pipe Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- China National Packaging & Food Machinery Corporation
- Main business:
- Caribbean RegionBermuda
- Siano (Beijing) Steel Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Yuxuan International Trading Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Ningbo Zhehua Heavy Steel Pipe Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Tianjin Hanby-Leaden Business & Trade Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Longma Steel Pipe Manufacturing Inc.
- Main business:
- Caribbean RegionBermuda
- Hebei Jushun Steel Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Tianjin Sincere Import & Export Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Uno-Steel (Jiangyin) Metal Products Manufacturing Limited
- Main business:
- Caribbean RegionBermuda
- Tianjin Baichuantong International Trade Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhejiang Bona Steel Tube Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Zhuowei Steel Pipe Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Liaocheng Xinpengyuan Metal Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Wuxi Zhenda Bearing Steel Tube Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Haicheng Beisteel Pipe Group of Companies Limited
- Main business:
- Caribbean RegionBermuda
- Jiangsu Fengli Precision Tube Manufacturing Co., Ltd.
- Main business:
- Caribbean RegionBermuda