| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.36 | USD | 20251117 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.3 | USD | 20251115 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.3 | USD | 20251114 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.01 | USD | 20251113 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.24 | USD | 20251112 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.0 | USD | 20251111 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.07 | USD | 20251110 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.22 | USD | 20251107 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.01 | USD | 20251106 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 507.75 | USD | 20251105 |