| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 330.59 | USD | 20250918 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 407.96 | USD | 20250918 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 407.96 | USD | 20250918 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 407.96 | USD | 20250918 |