| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 958.37 | USD | 20251022 |
| Shandong Qiangsen Chemical Co., Ltd. | China national standards | MT | 775.15 | USD | 20251022 |
| Hubei Seven Eight Nine Chemical Co., Ltd. | China national standards | MT | 775.15 | USD | 20251022 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1099.3 | USD | 20251022 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1085.21 | USD | 20251022 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1085.21 | USD | 20251022 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1014.74 | USD | 20251022 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1071.12 | USD | 20251022 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1226.15 | USD | 20251022 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1064.07 | USD | 20251022 |