| 1.
| Ya Yung Enterprise Co., Ltd. |
🇹🇼 Taipei Hsien, Taiwan |
3 |
| 2.
| YAYA B.V. |
🇳🇱 Halfweg, Netherlands |
1 |
| 3.
| YAYAMA TECHNO WORKS CO., LTD |
🇯🇵 MUMAMOTO JAPAN, Japan |
1 |
| 4.
| YAYATECH CO., LTD. |
🇹🇼 Hsinchu City, Taiwan |
1 |
| 5.
| YAYATECH CO., LTD. |
🇹🇼 Hsin-Chu, Taiwan |
2 |
| 6.
| Yayatech Co., Ltd. |
🇹🇼 Hsinchu, Taiwan |
3 |
| 7.
| YAYATECH Corp. Ltd. |
🇹🇼 Hsinchu, Taiwan |
1 |
| 8.
| Yayoi Hori |
🇯🇵 Sakado-Shi, Saitama, Japan |
1 |
| 9.
| Yayoi Tange |
🇯🇵 Achi, Japan |
1 |
| 10.
| YAYUMA AUDIO SP. Z.O.O. |
🇵🇱 Jaworzno, Poland |
1 |