| Vendor | Spec | Unit | Price | Currency | Date |
| WENTONG Potassium | China national standards | MT | 1129.05 | USD | 20251118 |
| Shanxi Changlu Tech | China national standards | MT | 1030.26 | USD | 20251118 |
| Shandong Longhui Chem | China national standards | MT | 1044.37 | USD | 20251118 |
| Beijing WentongTech | China national standards | MT | 973.81 | USD | 20251118 |
| Jinan Jinrihe Chem | China national standards | MT | 903.24 | USD | 20251118 |
| Jinan Jinrihe Chem | China national standards | MT | 945.58 | USD | 20251118 |
| Jinan Jinrihe Chem | China national standards | MT | 903.24 | USD | 20251118 |
| Beijing WentongTech | China national standards | MT | 1072.6 | USD | 20251118 |
| Jinan Jinrihe Chem | China national standards | MT | 917.35 | USD | 20251118 |
| Jinan Jinrihe Chem | China national standards | MT | 903.24 | USD | 20251118 |