| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinling Chem | China national standards | MT | 1115.91 | USD | 20251202 |
| Qingdao Shengze Chem | China national standards | MT | 1087.66 | USD | 20251202 |
| Shandong Zhiheng | China national standards | MT | 1172.42 | USD | 20251202 |
| Dongying HuataiChem | China national standards | MT | 1115.91 | USD | 20251202 |
| Shandong Xingpeng Chem | China national standards | MT | 1080.6 | USD | 20251202 |
| Dongying HuataiChem | China national standards | MT | 1087.66 | USD | 20251202 |
| Shandong Aite Chem | China national standards | MT | 1144.16 | USD | 20251202 |
| Nantong Zhonghe Chem | China national standards | MT | 1031.16 | USD | 20251202 |
| Shandong Aite Chem | China national standards | MT | 1144.16 | USD | 20251202 |
| Shandong Huize Chem | China national standards | MT | 1049.52 | USD | 20251202 |