| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1307.98 | USD | 20251009 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1307.98 | USD | 20251009 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1308.85 | USD | 20250930 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1308.85 | USD | 20250930 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1308.22 | USD | 20250929 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1308.22 | USD | 20250929 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1307.06 | USD | 20250928 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1307.06 | USD | 20250928 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1307.06 | USD | 20250926 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1307.06 | USD | 20250926 |