| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Lishuo Chem | China national standards | MT | 847.89 | USD | 20251208 |
| Shandong Jinwen Chem | China national standards | MT | 989.2 | USD | 20251208 |
| Wanhua Yantai | China national standards | MT | 791.53 | USD | 20251207 |
| Jinan Qi Mat | China national standards | MT | 1031.82 | USD | 20251207 |
| Wanhua Chem | China national standards | MT | 1031.82 | USD | 20251207 |
| Sinopec | China national standards | MT | 791.53 | USD | 20251207 |
| Sinopec | China national standards | MT | 791.53 | USD | 20251207 |
| Shandong Yihe Chem | China national standards | MT | 791.53 | USD | 20251207 |
| Satellite Chem | China national standards | MT | 791.53 | USD | 20251207 |
| Wanhua Chem | China national standards | MT | 1045.95 | USD | 20251207 |