| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 945.99 | USD | 20251114 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 945.45 | USD | 20251111 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1270.0 | USD | 20251111 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 945.58 | USD | 20251110 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1270.18 | USD | 20251110 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1270.18 | USD | 20251110 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 959.96 | USD | 20251107 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1411.71 | USD | 20251107 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 959.08 | USD | 20251105 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1410.42 | USD | 20251105 |