- Qingdao Ostar Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Hebei Shengtian Group Seamless Steel Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Dongguan Changyuan Industry Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Taizhou Huangyan Angel Trade Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- PLASTOFER SRL
- Main business:
- Southern EuropeItaly
- Wuhu Techsun Import & Export Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- SP HI-TECH CO LTD
- Main business:
- Caribbean RegionBermuda
- Shenzhen Kemei Hardware Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Tianjin Xingshengda Industrial Trade Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Zhejiang Xinda Plastic Pipe Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Tangshan Xingbang Plumbing Engineering Equipment Limited Company
- Main business:
- Caribbean RegionBermuda
- Zhuji Hongfeng Machinery Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- COMBARLOY REFRIGERATION LTD
- Main business:
- Caribbean RegionBermuda
- Yuyao Jieyu Machinery Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Renqiu City Bellows Factory
- Main business:
- Caribbean RegionBermuda
- Zhuji Shangfeng Metal Factory ( General Partnership)
- Main business:
- Caribbean RegionBermuda
- Kunshan Xiansheng Mechatronic Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- PT. TRI SINAR PURNAMA
- Main business:
- Caribbean RegionBermuda
- Botou Valve Manufacturing Industrial Co., Ltd.
- Main business:
- Caribbean RegionBermuda
- Yangzhou Successful Metal Products Co., Ltd.
- Main business:
- Caribbean RegionBermuda