| # | Name | Location | Applications |
|---|---|---|---|
| 1. | H.D. Patterns and Matchplates Inc. | New Hamburg, ON, un | 1 |
| 2. | HD Petroleum Inc. | 🇨🇦 Winnipeg, MB, Canada | 2 |
| 3. | HD Plus GMBH | 🇩🇪 Unterfohring, Germany | 1 |
| 4. | HD Products, LLC | 🇺🇸 Centennial, CO, United States | 1 |
| 5. | HD PROPPANTS LLC | 🇺🇸 Hudson, OH, United States | 1 |
| 6. | HDPB SYSTEM INTERNATIONAL, S.A. | Obarrio, Panama | 1 |
| 7. | HDPE SOLUTIONS, LLC | 🇺🇸 West Palm Beach, FL, United States | 4 |
| 8. | HDPRO CO., LTD. | 🇰🇷 Bucheon-si, South Korea | 1 |
| 9. | HDPRO CO.,LTD | 🇰🇷 Bucheon, South Korea | 1 |