| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| CNPC | China national standards | MT | USD | 20250305 | |
| Shandong Chambroad | China national standards | MT | USD | 20250304 | |
| Dongying Junyuan | China national standards | MT | USD | 20250304 | |
| CNPC | China national standards | MT | USD | 20250304 | |
| Shandong Chambroad | China national standards | MT | USD | 20250303 | |
| Dongying Junyuan | China national standards | MT | USD | 20250303 | |
| CNPC | China national standards | MT | USD | 20250303 | |
| Shandong Chambroad | China national standards | MT | USD | 20241219 | |
| Dongying Junyuan | China national standards | MT | USD | 20241219 | |
| CNPC | China national standards | MT | USD | 20241219 |
