1.SUMMIT AUTO BODY INDUSTRY CO.,LTD.

2.THAI SUMMIT AUTO PARTS INDUSTRY CO.,LTD.

3.THAI SUMMIT PKK ENGINEERING CO.,LTDDIES CO.,LTD.

4.THAI SUMMITLEAMCHABANG AUTOPART CO.,LTD

5.OGIHARA(THAILAND)CO.,LTD.

6.SNN TOOLS & DIE CO.,LTD.

7.HONDA ENGINEERING ASIAN CO.,LTD

8.GENERAL MOTOR(THAILAND) CO.,LTD.

9.THAIRUNG TOOLS AND DIE CO.,LTD.

10.ISUZU MOTOR (THAILAND) CO., LTD.

ETC.,