| # | Name | Location | Applications |
|---|---|---|---|
| 1. | R.F. Hunter Company, Inc. | 🇺🇸 Dover, NH, United States | 1 |
| 2. | RFH Chemie GmbH & Co. KG | 🇩🇪 Bünde, Germany | 1 |
| 3. | RFHIC Corporation | 🇰🇷 Anyang, South Korea | 14 |
| 4. | RFHIC Corporation | 🇯🇵 Anyang, Japan | 1 |
| 5. | RFHIC Corporation | 🇺🇸 Morrisville, NC, United States | 1 |
| 6. | RFHIC CORPORATION | 🇰🇷 , South Korea | 1 |
| 7. | RFHIC Corporation | 🇰🇷 Anyang-si, South Korea | 13 |