| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 959.3 | USD | 20251104 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1410.74 | USD | 20251104 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1411.09 | USD | 20251103 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 959.54 | USD | 20251103 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1411.15 | USD | 20251030 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1270.04 | USD | 20251030 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 973.7 | USD | 20251030 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1269.73 | USD | 20251027 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1410.82 | USD | 20251027 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 972.82 | USD | 20251024 |