| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Shandong Langchem | China national standards | MT | USD | 20251204 | |
| Sinopec | China national standards | MT | USD | 20251204 | |
| Shandong Yihe Chem | China national standards | MT | USD | 20251204 | |
| CNPC | China national standards | MT | USD | 20251204 | |
| CNPC | China national standards | MT | USD | 20251204 | |
| Derun Chem | China national standards | MT | USD | 20251204 | |
| Shandong Chambroad | China national standards | MT | USD | 20251204 | |
| Shandong Dongming Petro | China national standards | MT | USD | 20251204 | |
| Huaibei Beike | China national standards | MT | USD | 20251203 | |
| Anyang Yutian | China national standards | MT | USD | 20251203 |
