| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 636.2 | USD | 20251204 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 636.2 | USD | 20251204 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 636.01 | USD | 20251203 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 636.01 | USD | 20251203 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 635.65 | USD | 20251202 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 635.65 | USD | 20251202 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 635.96 | USD | 20251201 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 635.96 | USD | 20251201 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 635.69 | USD | 20251129 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 635.69 | USD | 20251129 |