| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chemical Co., Ltd. | China national standards | MT | 958.69 | USD | 20251021 |
| Xiamen Yudeshun Chemical Products Co., Ltd. | China national standards | MT | 1268.86 | USD | 20251021 |
| Jinan Aochen Chemical Co., Ltd. | China national standards | MT | 1127.87 | USD | 20251021 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 1057.38 | USD | 20251021 |
| WENTONG Potassium Salt Group Co., Ltd. | China national standards | MT | 1057.38 | USD | 20251021 |
| Shandong Zhongke Taihua New Material Co., Ltd. | China national standards | MT | 916.4 | USD | 20251021 |
| Wuhan Hengjiu Chemical Co., Ltd. | China national standards | MT | 986.89 | USD | 20251021 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1085.58 | USD | 20251021 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1015.09 | USD | 20251021 |
| Pingxiang Lixin Biochemical High Tech Co., Ltd. | China national standards | MT | 1085.58 | USD | 20251021 |