| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 182.87 | USD | 20250929 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 182.71 | USD | 20250928 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 182.71 | USD | 20250927 |