| Vendor | Spec | Unit | Price | Currency | Date |
| CNPC | China national standards | MT | 1213.56 | USD | 20251111 |
| Jinan Pulaihua Chem | China national standards | MT | 1270.0 | USD | 20251111 |
| Sinopec | China national standards | MT | 1107.72 | USD | 20251111 |
| Zibo Lishuo Chem | China national standards | MT | 987.78 | USD | 20251111 |
| Shandong Laya Chem | China national standards | MT | 973.67 | USD | 20251111 |
| Shandong Xima | China national standards | MT | 973.67 | USD | 20251111 |
| Zibo Lishuo Chem | China national standards | MT | 987.78 | USD | 20251111 |
| Shandong Jinwen Chem | China national standards | MT | 1199.45 | USD | 20251111 |
| Zibo Lishuo Chem | China national standards | MT | 987.78 | USD | 20251111 |
| Shandong Qiangsen Chem | China national standards | MT | 1044.22 | USD | 20251111 |