| Vendor | Spec | Unit | Price | Currency | Date |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 933.71 | USD | 20251211 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 933.71 | USD | 20251211 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1131.77 | USD | 20251211 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 988.88 | USD | 20251211 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 933.71 | USD | 20251211 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 988.88 | USD | 20251211 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 919.56 | USD | 20251211 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1061.03 | USD | 20251211 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1103.47 | USD | 20251211 |
| Jinan Jinrihe Chemical Co., Ltd. | China national standards | MT | 919.56 | USD | 20251211 |