| # | Name | Location | Applications |
|---|---|---|---|
| 1. | G. Chain Ltd. | 🇮🇱 Gdera, Israel | 1 |
| 2. | G.C. Hahn & Co. | 🇩🇪 Lubeck, Germany | 1 |
| 3. | G.C. Hoyle Company LLC | 🇺🇸 Cumming, GA, United States | 3 |
| 4. | GC Holding A/S, C/O Composhield A/S | 🇩🇰 Hobro, Denmark | 1 |
| 5. | GCH TECHNOLOGY CO., LTD. | 🇨🇳 Guangdong, China | 1 |
| 6. | GCH Technology Co., Ltd. | 🇨🇳 Guangzhou, China | 5 |