| 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 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 1028.63 | USD | 20251016 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1099.09 | USD | 20251016 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1070.91 | USD | 20251016 |
| Beijing Wentong Tianxia Cultural Technology Co., Ltd. | China national standards | MT | 1070.91 | USD | 20251016 |
| Jinan Angxin Chemical Co., Ltd. | China national standards | MT | 1000.45 | USD | 20251016 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1014.54 | USD | 20251016 |