| Vendor | Spec | Unit | Price | Currency | Date |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1070.83 | USD | 20251020 |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 958.11 | USD | 20251020 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1063.78 | USD | 20251020 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1014.47 | USD | 20251020 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1070.83 | USD | 20251020 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1063.78 | USD | 20251020 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1091.96 | USD | 20251020 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1225.82 | USD | 20251020 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1084.92 | USD | 20251020 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1084.92 | USD | 20251020 |