1. Sekigahara Seisakusho Co.,ltd
2. Nishi-F Co.,ltd
3. Shigi Shipbuilding Co.,ltd
4. IMC Co.,ltd
5. Hoei Senpaku Co.,ltd
6. Iknow Machinery Co.,ltd
7. Manabe Zoki Co.,ltd
8. Tsuneishi Forestry Construction Co.,ltd
9. Mansei Inc.
10. Jiangyin Xinjiang FRP Co.,ltd ( China )
11. Qingdao Beihei Shipbuilding Heavy Industry ( China )
12. Hyundai Lifeboat ( Korea )
13. Dongnam Marine Crane Ltd ( Korea )
14. Oriental Inspection & service Co.,ltd ( Korea )
15. Wuxi Hai Hong Boat Making Co.,ltd ( Hong Kong )