OVERSEAS:

• S-two GmbH & Co.KG
• Duvalco B.V/Duvalco Valves & Fittings Pte Ltd
• Wouter Witzel Eurovalve
• GRUNDFOS GMBH
  
• MARFLEX EUROPE BV
• PAN ASIAN HOLDINGS LITMITED 
  

DOMESTIC: 

• SHANXI DIESEL ENGINE HEAVY INDUSTRY CO., LTD
• COSCO(WEIHAI) SHIPBUILDING MARINE TECHNOLOGY CO.,LTD
• AVK Valves(Shanghai) Co., LTD
• Beijing Highlander Digital Technology Co., Ltd
• GUANGZHOU WENCHONG SHIPYARD
• CSSC GUANGZHOU HUANGPU SHIPBUILDING CO., LTD
• GUANGCHUANG SHIPYARD INTERNATIONAL CO., LTD
• COSCO(GUANGZHOU) SHIPYARD CO., LTD
• SHANGHAI CSR HANGE SHIPPING ENGINEERING CO., LTD