| Vendor | Spec | Unit | Price | Currency | Date |
| China national standards | MT | 1106.43 | USD | 20251017 | |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 1000.72 | USD | 20251017 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 958.43 | USD | 20251017 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1057.1 | USD | 20251017 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1085.0 | USD | 20251016 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1085.0 | USD | 20251016 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1056.81 | USD | 20251016 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 915.91 | USD | 20251016 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1056.81 | USD | 20251016 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 1000.45 | USD | 20251016 |