| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 509.29 | USD | 20251211 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.81 | USD | 20251210 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.67 | USD | 20251209 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.73 | USD | 20251208 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.84 | USD | 20251205 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.96 | USD | 20251204 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.81 | USD | 20251203 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.52 | USD | 20251202 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.77 | USD | 20251201 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 508.55 | USD | 20251129 |