| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Chem | China national standards | MT | 1340.27 | USD | 20251027 |
| Shandong Zhiheng | China national standards | MT | 1128.65 | USD | 20251027 |
| Shandong Zhiheng | China national standards | MT | 1128.65 | USD | 20251027 |
| Shandong Zhiheng | China national standards | MT | 1170.98 | USD | 20251027 |
| Shandong Hongyang Chem | China national standards | MT | 1093.38 | USD | 20251027 |
| Shandong Hongyang Chem | China national standards | MT | 1187.91 | USD | 20251027 |
| Shandong Hongyang Chem | China national standards | MT | 1121.6 | USD | 20251027 |
| Shandong Jinling Chem | China national standards | MT | 1241.52 | USD | 20251027 |
| Hangjin Tech | China national standards | MT | 1015.79 | USD | 20251027 |
| Dongying HuataiChem | China national standards | MT | 1057.41 | USD | 20251026 |