| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 946.61 | USD | 20251127 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 945.98 | USD | 20251125 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 945.7 | USD | 20251124 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 945.7 | USD | 20251124 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 959.44 | USD | 20251121 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 945.33 | USD | 20251121 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 960.23 | USD | 20251117 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 960.11 | USD | 20251114 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 945.99 | USD | 20251114 |
| Zibo Dehe Chemical Co., Ltd. | China national standards | MT | 945.46 | USD | 20251113 |