| Vendor | Spec | Unit | Price | Currency | Date |
| Wuhan Hengjiu Chem | China national standards | MT | 989.2 | USD | 20251208 |
| Jinan Jinrihe Chem | China national standards | MT | 988.0 | USD | 20251207 |
| Jinan Jinrihe Chem | China national standards | MT | 932.88 | USD | 20251207 |
| Pingxiang Lixin BioTech | China national standards | MT | 1088.35 | USD | 20251207 |
| Jinan Jinrihe Chem | China national standards | MT | 918.74 | USD | 20251207 |
| Jinan Jinrihe Chem | China national standards | MT | 932.88 | USD | 20251207 |
| WENTONG Potassium | China national standards | MT | 932.88 | USD | 20251207 |
| WENTONG Potassium | China national standards | MT | 1088.35 | USD | 20251207 |
| Pingxiang Lixin BioTech | China national standards | MT | 1088.35 | USD | 20251207 |
| Jinan Jinrihe Chem | China national standards | MT | 918.74 | USD | 20251207 |