1.SUMMIT GROUP
2.THAI SUMMIT GROUP
3.BANGKOK KOMUTSU INDUSTRIES CO., LTD (BKI)
4.BANGKOK KOMUTSU CO., LTD (BKC)
5.SOMBOON GROUP
6.ARVIN MORITOR (THAILAND) CO., LTD
7.J.F.K TRADING (THAILAND) CO., LTD
8.HKS (THAILAND) CO., LTD
9.KPN PLASTIC PUBLIC CO., LTD