| Catalogue |
| Supplier | Country | Telephone |
| BIOBASE Meihua Trading Co., Ltd | China | 18254183337 |
| Xi’an TOPTION INSTRUMENT CO., LTD | China | +8613384920580 |
| Alfa Chemistry Graphene | United States | +1 516 734 6573 |
| Alfa Chemistry Nanomaterials | United States | +1 516 734 6573 |
| Alfa Chemistry | United States | +1 516 734 6573 |
| Alfa Chemistry Materials | United States | +1 516 734 6573 |
| Alfa Chemistry Analytical Products | United States | +1 516 734 6573 |
| Beijing Xiangyue Huanyu technology development Co. Ltd. | China | +86-010-82796615 |
| Alfa Chemistry T,C&A Lab | United States | +1 516 734 6573 |
| Alfa Chemistry Functional Polymers | United States | +1 516 734 6573 |
| Alfa Chemistry Fatty Acid | United States | +1 516 734 6573 |
| Alfa Chemistry Catalysts | United States | +1 516 734 6573 |
| GUPU BIOTEC (XI'AN) CO. LTD. | China | +86-19829827279 |
| Zenas BioPharma | China | +1 (310) 642-6930 |
| MitochondriaSci | United States | 16316197922 |
| KANSMA INVESTMENTS LTD | Zambia | +260955433709 |
| Optolong Optics Ltd | China | 18388158376 |
| GenNext Technologies | United States | 650 726 1059 |
| Isohelix | United Kingdom | +44 (0)1223 627113 |
| Guangdong Mytop Lab Equipment Co., Ltd | China | 00832029895481 |