| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 966.14 | USD | 20250812 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 966.32 | USD | 20250811 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1092.36 | USD | 20250811 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1092.71 | USD | 20250809 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 966.63 | USD | 20250809 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 966.63 | USD | 20250808 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1092.71 | USD | 20250808 |