- Hebei Dongxinli Pipeline Manufacture Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Yinan Copper Industry Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Ductiron Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhongke Huafei Industry Pipes (Qingyuan) Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Liaocheng City Tongli Steel Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Changzhou Runsun Energy Technology Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Ningbo Amico Pipeline Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Chuang Yi Plastic Co.,Ltd.
- Main business:
- Caribbean RegionBermuda
- Knkchina Mfg Co., Limited
- Main business:
- Caribbean RegionBermuda
- Yuyao City Maikeer Plastic Moulds Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhongping Metal (Hongkong) Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Cangzhou Up Pipe Fittings Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hangzhou Tercel Imp & Exp. Co., Ltd
- Main business:
- Caribbean RegionBermuda
- Cangzhou Zhen-Yu Steel Pipe Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Flagship Houseware Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Guangzhou Yikai Trading Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Jiangyin Sundream Precision Steel Tube Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Shenzhen Kontoon Cable Technology Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Qingdao Royal Steel Pipe & Fittings Co.,Ltd
- Main business:
- Caribbean RegionBermuda
- Tianjin Sanjuyuan Trade Co., Ltd.
- Main business:
- Caribbean RegionBermuda