| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 946.41 | USD | 20251202 |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 1059.41 | USD | 20251202 |
| China national standards | MT | 974.66 | USD | 20251202 | |
| Shandong Aite Chemical Co., Ltd. | China national standards | MT | 1101.79 | USD | 20251202 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 925.22 | USD | 20251202 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 918.16 | USD | 20251202 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 889.91 | USD | 20251202 |
| China national standards | MT | 939.35 | USD | 20251202 | |
| Zibo Zhongsheng Chemical Co., Ltd. | China national standards | MT | 1271.29 | USD | 20251202 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 889.91 | USD | 20251202 |