| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 317.21 | USD | 20251021 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 317.02 | USD | 20251020 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 332.63 | USD | 20251017 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 332.54 | USD | 20251016 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 332.42 | USD | 20251015 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 332.3 | USD | 20251014 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 332.36 | USD | 20251013 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 316.5 | USD | 20250929 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 316.22 | USD | 20250928 |
| Suzhou Chemical Material Co., Ltd. | China national standards | MT | 332.13 | USD | 20250924 |