| # | Name | Location | Applications |
|---|---|---|---|
| 1. | W. K. WU PRODUCTS INC. | 🇹🇼 NEW TAIPEI CITY, Taiwan | 1 |
| 2. | W.K. Wu Products Inc. | 🇹🇼 Taipei Hsien, Taiwan | 1 |
| 3. | W.K. WU PRODUCTS INC. | 🇹🇼 New Taipei, Taiwan | 1 |
| 4. | WKW Engineering GmbH | 🇩🇪 Wuppertal, Germany | 2 |
| 5. | WKW Erbsloeh Automotive GmbH | 🇩🇪 Wuppertal, Germany | 1 |
| 6. | WKW Erbsloh Automotive GmbH | 🇩🇪 Wuppertal, Germany | 1 |
| 7. | WKW Erbsloh Automotive GmbH | 🇩🇪 Velbert, Germany | 1 |
| 8. | WKW North America Holding, Inc. | 🇺🇸 Troy, MI, United States | 1 |