| Vendor | Spec | Unit | Price | Currency | Date |
| Xiangyang Youdeshi Chemical Co., Ltd. | China national standards | MT | 989.36 | USD | 20251210 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1102.43 | USD | 20251210 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 890.42 | USD | 20251210 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1088.29 | USD | 20251210 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 975.22 | USD | 20251210 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1102.43 | USD | 20251210 |
| Baozhen Chemical (Shandong) Co., Ltd. | China national standards | MT | 1010.56 | USD | 20251210 |
| Shandong Jinshengrun Chemical Co., Ltd. | China national standards | MT | 1031.76 | USD | 20251210 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 777.35 | USD | 20251210 |
| Jinan Jinhao Chemical Co., Ltd. | China national standards | MT | 1017.62 | USD | 20251210 |