| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1270.34 | USD | 20251124 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1270.34 | USD | 20251124 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 945.7 | USD | 20251124 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1269.84 | USD | 20251121 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 945.33 | USD | 20251121 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1269.84 | USD | 20251121 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1270.9 | USD | 20251117 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 946.11 | USD | 20251117 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1270.9 | USD | 20251117 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 945.99 | USD | 20251114 |