| Vendor | Spec | Unit | Price | Currency | Date |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1056.74 | USD | 20251020 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1549.89 | USD | 20251020 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 1268.52 | USD | 20251019 |
| Shandong Daoqin Chemical Co., Ltd. | China national standards | MT | 1268.52 | USD | 20251018 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1085.29 | USD | 20251018 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 1254.42 | USD | 20251018 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1550.41 | USD | 20251018 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1550.41 | USD | 20251017 |
| Lihuayi Weiyuan Chemical Co., Ltd. | China national standards | MT | 1057.1 | USD | 20251017 |
| Shanghai Juexin Industrial Development Co., Ltd. | China national standards | MT | 1268.52 | USD | 20251017 |