| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1272.03 | USD | 20251210 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 946.96 | USD | 20251210 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1272.03 | USD | 20251210 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 946.69 | USD | 20251209 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1271.67 | USD | 20251209 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 946.41 | USD | 20251202 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1271.29 | USD | 20251202 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1271.38 | USD | 20251128 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 946.47 | USD | 20251128 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1271.38 | USD | 20251128 |