| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Huize Chemical Technology Co., Ltd. | China national standards | MT | 900.33 | USD | 20250918 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 998.8 | USD | 20250918 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1111.35 | USD | 20250918 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1097.28 | USD | 20250918 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 970.67 | USD | 20250918 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1097.28 | USD | 20250918 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1111.35 | USD | 20250918 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1237.95 | USD | 20250918 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1111.35 | USD | 20250918 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1097.28 | USD | 20250918 |