| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 932.82 | USD | 20251210 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 946.96 | USD | 20251210 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 1201.36 | USD | 20251210 |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1130.69 | USD | 20251210 |
| China national standards | MT | 939.89 | USD | 20251210 | |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 904.56 | USD | 20251210 |
| Shandong Fushengyong Trading Co., Ltd. | China national standards | MT | 1102.43 | USD | 20251210 |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1272.03 | USD | 20251210 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 932.56 | USD | 20251209 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 932.56 | USD | 20251209 |