| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Huize Chem | China national standards | MT | 1755.91 | USD | 20250826 |
| Shandong Huize Chem | China national standards | MT | 1752.05 | USD | 20250807 |
| Shandong Huize Chem | China national standards | MT | 1749.06 | USD | 20250728 |
| Shandong Huize Chem | China national standards | MT | 1747.71 | USD | 20250721 |
| Shandong Huize Chem | China national standards | MT | 1748.3 | USD | 20250715 |
| Shandong Huize Chem | China national standards | MT | 1747.25 | USD | 20250709 |
| Shandong Huize Chem | China national standards | MT | 1747.42 | USD | 20250708 |
| Shandong Huize Chem | China national standards | MT | 1747.4 | USD | 20250704 |
| Shandong Huize Chem | China national standards | MT | 1747.69 | USD | 20250703 |
| Shandong Huize Chem | China national standards | MT | 1747.13 | USD | 20250702 |