| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Sinopec | China national standards | MT | USD | 20251201 | |
| Wanhua Chem | China national standards | MT | USD | 20251201 | |
| CNPC | China national standards | MT | USD | 20251201 | |
| Shandong Yuhuang Chem | China national standards | MT | USD | 20251201 | |
| Lihuayi Shandong | China national standards | MT | USD | 20251201 | |
| Sinopec | China national standards | MT | USD | 20251130 | |
| Shandong Xingpeng Chem | China national standards | MT | USD | 20251130 | |
| Lihuayi Shandong | China national standards | MT | USD | 20251130 | |
| Shaanxi Yanchang Petro | China national standards | MT | USD | 20251130 | |
| CNPC | China national standards | MT | USD | 20251130 |
