| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 421.77 | USD | 20250919 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 422.03 | USD | 20250918 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 1125.41 | USD | 20250918 |