| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Luxi Chem | China national standards | MT | 333.3 | USD | 20260305 |
| Shandong Luxi Chem | China national standards | MT | 318.27 | USD | 20260304 |
| Shandong Luxi Chem | China national standards | MT | 281.65 | USD | 20260302 |
| Jiangsu LeeMan Chem | China national standards | MT | 396.71 | USD | 20260225 |
| Dongying Huatai Chem | China national standards | MT | 270.71 | USD | 20260107 |
| Dongying Huatai Chem | China national standards | MT | 270.71 | USD | 20260107 |
| Shandong Jinling | China national standards | MT | 270.32 | USD | 20260104 |
| Shandong Jinling | China national standards | MT | 270.32 | USD | 20260104 |