| # | Name | Location | Applications |
|---|---|---|---|
| 1. | Y. G-1 TOOL. CO. | 🇰🇷 Incheon, South Korea | 1 |
| 2. | YG-1 Co., Ltd. | 🇰🇷 Pupyoung-Gu, Incheon, South Korea | 1 |
| 3. | YG-1 CO., LTD. | 🇰🇷 16beon-gil, Yeonsu-gu, South Korea | 1 |
| 4. | YG-1 CO., LTD. | 🇰🇷 lncheon, South Korea | 1 |
| 5. | YG-1 Co., Ltd. | 🇰🇷 Incheon, South Korea | 9 |
| 6. | YG-1 CO., LTD. | 🇰🇷 Pupyoung-Gu, South Korea | 1 |