| Vendor | Spec | Unit | Price | Currency | Date |
| Baozhen Shandong Chem | China national standards | MT | 1058.13 | USD | 20251101 |
| GuangZhan Chem | China national standards | MT | 1128.67 | USD | 20251031 |
| GuangZhan Chem | China national standards | MT | 1128.67 | USD | 20251031 |
| WENTONG Potassium | China national standards | MT | 1128.67 | USD | 20251031 |
| Jinan Aochen Chem | China national standards | MT | 1128.67 | USD | 20251031 |
| Jinan Aochen Chem | China national standards | MT | 1128.67 | USD | 20251031 |
| Jinan Aochen Chem | China national standards | MT | 1128.67 | USD | 20251031 |
| Jinan Aochen Chem | China national standards | MT | 1100.45 | USD | 20251031 |
| Hubei 789 Chem | China national standards | MT | 775.96 | USD | 20251031 |
| Hubei 789 Chem | China national standards | MT | 775.96 | USD | 20251031 |