| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.16 | USD | 20250901 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.16 | USD | 20250901 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.54 | USD | 20250829 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.54 | USD | 20250829 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.24 | USD | 20250828 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 633.24 | USD | 20250828 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 632.84 | USD | 20250827 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 632.84 | USD | 20250827 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 632.13 | USD | 20250826 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 632.13 | USD | 20250826 |