| Vendor | Spec | Unit | Price | Currency | Date |
| Hubei 789 Chem | China national standards | MT | 777.34 | USD | 20251203 |
| Jinan Aochen Chem | China national standards | MT | 1102.41 | USD | 20251203 |
| WENTONG Potassium | China national standards | MT | 1130.68 | USD | 20251203 |
| Shanghai SKY Chem | China national standards | MT | 1081.21 | USD | 20251203 |
| WENTONG Potassium | China national standards | MT | 932.81 | USD | 20251203 |
| Jinan Jinrihe Chem | China national standards | MT | 918.68 | USD | 20251203 |
| Pingxiang Lixin BioTech | China national standards | MT | 1081.21 | USD | 20251203 |
| Pingxiang Lixin BioTech | China national standards | MT | 1088.28 | USD | 20251203 |
| Pingxiang Lixin BioTech | China national standards | MT | 1017.61 | USD | 20251203 |
| Beijing WentongTech | China national standards | MT | 1087.66 | USD | 20251202 |