| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 204.3 | USD | 20251020 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 204.37 | USD | 20251017 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 204.32 | USD | 20251016 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 204.24 | USD | 20251015 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 204.16 | USD | 20251014 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 204.21 | USD | 20251013 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 203.97 | USD | 20250929 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 203.79 | USD | 20250928 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 204.06 | USD | 20250924 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 204.06 | USD | 20250923 |