| Vendor | Spec | Unit | Price | Currency | Date |
|---|---|---|---|---|---|
| Shandong Laya Chem | China national standards | MT | USD | 20251203 | |
| Sinopec | China national standards | MT | USD | 20251203 | |
| Shandong Shuojia Chem | China national standards | MT | USD | 20251203 | |
| Shaanxi Yanchang Petro | China national standards | MT | USD | 20251203 | |
| Sinopec | China national standards | MT | USD | 20251203 | |
| CNPC | China national standards | MT | USD | 20251203 | |
| Lihuayi Shandong | China national standards | MT | USD | 20251203 | |
| Shandong Yuhuang Chem | China national standards | MT | USD | 20251203 | |
| Shandong Xingpeng Chem | China national standards | MT | USD | 20251203 | |
| CNPC | China national standards | MT | USD | 20251202 |
