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| Company Name | Tel | Country/Region | Contact |
| Utopharm(Shanghai) Company Limited. | 86-21-54091930 | China | |
| ULVAC NINGBO Co., Ltd | 86-574-87907915 | China | |
| Uscn Life Science, Inc. | 86-27-84259687 | China | |
| United Pharma Industries Co.,Ltd. | 86-571-56834226 | China | |
| U.S. Pharmacopeia | 86-21-51370600 | China | |
| Upkind Technologies Co., Ltd. | 86-514-84239488 | China | |
| Universal Advanced Technologies | 86-21-63773320 | China | |
| Unibest Biopharma（Shanghai）Co., Ltd | 86-21-34621809 | China | |
| Upgrade Automation Engineering Co, .Ltd. | 886-3-4727001 | Taiwan | |
| Unique Rubber Co. Ltd., | 886-4-8652213 | Taiwan | |
| UCT Specialties LLC | 215 781 9255 | United States | |
| Ubichem plc | 44 23 8026 3030 | United Kingdom | |
| Ubichem Research, Ltd. | +36 1 347 5060 ext. 114 | Hungary | |
| Umicore | 82-2-22405234 | Korea | |
| UFC Corporation | 49-618159-2471 | Germany | |
| Unival Group | 86-755-82979842 | China | |
| Unichem Corporation | 7 (985) 263-5856 (in Moscow) | Russian | |
| U.S. Chemicals, Inc. | 203 966 8777 | United States | |
| Upstate | 434 975 4300 | United States | |
| Universidad Veracruzana | 2288301892 | MEXICO |