| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 331.75 | USD | 20251107 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 331.52 | USD | 20251104 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 331.61 | USD | 20251103 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 331.55 | USD | 20251031 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 331.62 | USD | 20251030 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 331.72 | USD | 20251029 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 324.6 | USD | 20251028 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 324.27 | USD | 20251024 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 317.27 | USD | 20251023 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 317.11 | USD | 20251022 |