| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1213.73 | USD | 20251028 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1213.3 | USD | 20251027 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1212.5 | USD | 20251024 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1212.67 | USD | 20251023 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1212.46 | USD | 20251021 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1211.73 | USD | 20251020 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1212.14 | USD | 20251017 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1211.81 | USD | 20251016 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1211.35 | USD | 20251015 |
| Shandong Jinwen Chemical Co., Ltd. | China national standards | MT | 1210.91 | USD | 20251014 |