| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 474.2 | USD | 20251118 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 474.47 | USD | 20251117 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 474.41 | USD | 20251114 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 474.13 | USD | 20251111 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 474.2 | USD | 20251110 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 474.34 | USD | 20251107 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 474.01 | USD | 20251104 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 474.13 | USD | 20251103 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 474.04 | USD | 20251031 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 474.15 | USD | 20251030 |