| # | Name | Location | Applications |
|---|---|---|---|
| 1. | HD Connectivity Ltd. | 🇬🇧 Malvern, United Kingdom | 1 |
| 2. | HDC HYUNDAI ENGINEERING PLASTICS CO., LTD. | 🇰🇷 Dangjin-si, South Korea | 4 |
| 3. | HDC Hyundai Engineering Plastics Co., Ltd. | 🇰🇷 Dangjin, South Korea | 1 |
| 4. | HDC Inc. | 🇰🇷 Incheon, South Korea | 2 |
| 5. | HDC INC. | 🇰🇷 Incheon-City, South Korea | 1 |
| 6. | HDC Polyall Co., Ltd. | 🇰🇷 Ulsan, South Korea | 4 |
| 7. | HDC S.R.L. | 🇮🇹 Sarcedo, VI, Italy | 1 |
| 8. | HDC S.R.L. | 🇮🇹 Sarcedo, Italy | 1 |