| TDK Thailand co.,ltd. | YOSHINO MOONG PATTANA Thailand co.,ltd. |
| KATSUSHIKA Thailand co.,ltd. | AISIN AI Thailand co.,ltd. |
| THAI HOOVER INDUSTRY co.,ltd. |
| TDK HONGKONG co.,ltd. | YAMAGATA co.,ltd. |
| H&S UNION ENTERPRISE co.,ltd. | KIYOKUNI INDUSTRY ASIA ltd. |