| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yushuo Chem | China national standards | MT | 918.61 | USD | 20251201 |
| Shandong Shuojia Chem | China national standards | MT | 900.24 | USD | 20251201 |
| Shandong Zhiheng | China national standards | MT | 1173.0 | USD | 20251201 |
| Jinan Qi Mat | China national standards | MT | 890.35 | USD | 20251201 |
| Sinopec | China national standards | MT | 911.54 | USD | 20251201 |
| Lihuayi Shandong | China national standards | MT | 890.35 | USD | 20251201 |
| Shaanxi Yanchang Petro | China national standards | MT | 890.35 | USD | 20251201 |
| Shandong Yushuo Chem | China national standards | MT | 904.48 | USD | 20251201 |
| Wanhua Chem | China national standards | MT | 939.81 | USD | 20251201 |
| Shandong Xingpeng Chem | China national standards | MT | 893.17 | USD | 20251201 |