- Wuxi Sanjiang Machinery Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Desen Machinery Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shandong Liaocheng Youyi Steel Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shandong Boda Pipe Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Haining City Baoguang Heat Collection Tubes Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Kingan Plastic & Rubber Seals Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhejiang Jianli Company Limited
- Main business:
- Caribbean RegionBermuda
- Tianjin Jintian Auto Parts Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Best Ring Technology Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Wuxi Ruiyao Steel Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Wai Yip Hing-Seok Tianjin Pipe Sales Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shandong Hua Stainless Steel Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shenzhen Haitech Electric Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Jiangsu Xihu Special Steel Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Qingdao Sino Steel Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hangzhou Qingliang Machinery Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Liaoyang Xingde Large Steel Pipe Plant
- Main business:
- Caribbean RegionBermuda
- Xinyuantai Steel Pipe Group Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhucheng Zhongtaida Machinery Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhejiang Xinhang Stainless Steel Co., Ltd.
- Main business:
- Caribbean RegionBermuda