| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| CNPC | China national standards | MT | USD | 20250507 | |
| Sinopec | China national standards | MT | USD | 20250507 | |
| Shandong Chambroad | China national standards | MT | USD | 20250507 | |
| Daqing Jiulong | China national standards | MT | USD | 20250507 | |
| Dongying Junyuan | China national standards | MT | USD | 20250506 | |
| CNPC | China national standards | MT | USD | 20250506 | |
| Sinopec | China national standards | MT | USD | 20250506 | |
| Shandong Chambroad | China national standards | MT | USD | 20250506 | |
| Daqing Jiulong | China national standards | MT | USD | 20250506 | |
| Dongying Junyuan | China national standards | MT | USD | 20250430 |
