| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| CNPC | China national standards | MT | USD | 20250402 | |
| Shandong Chambroad | China national standards | MT | USD | 20250401 | |
| Dongying Junyuan | China national standards | MT | USD | 20250401 | |
| CNPC | China national standards | MT | USD | 20250401 | |
| Shandong Chambroad | China national standards | MT | USD | 20250331 | |
| Dongying Junyuan | China national standards | MT | USD | 20250331 | |
| CNPC | China national standards | MT | USD | 20250331 | |
| Shandong Chambroad | China national standards | MT | USD | 20250328 | |
| Dongying Junyuan | China national standards | MT | USD | 20250328 | |
| CNPC | China national standards | MT | USD | 20250328 |
