| Vendor | Spec | Unit | Price | Currency | Date |
| Shanxi Changlu Tech | China national standards | MT | 1031.38 | USD | 20251127 |
| Beijing WentongTech | China national standards | MT | 1087.89 | USD | 20251127 |
| Shandong Qiangsen Chem | China national standards | MT | 777.07 | USD | 20251127 |
| Pingxiang Lixin BioTech | China national standards | MT | 1073.76 | USD | 20251127 |
| WENTONG Potassium | China national standards | MT | 1059.64 | USD | 20251127 |
| Jinan Jinrihe Chem | China national standards | MT | 987.58 | USD | 20251127 |
| Shandong Zhongke Taihua | China national standards | MT | 918.35 | USD | 20251127 |
| Shandong Xima | China national standards | MT | 875.97 | USD | 20251127 |
| Liao Jinxinda | China national standards | MT | 875.97 | USD | 20251127 |
| Shandong Zhongke Taihua | China national standards | MT | 1059.64 | USD | 20251127 |