| Vendor | Spec | Unit | Price | Currency | Date |
| Luxi Chem | China national standards | MT | 713.69 | USD | 20251201 |
| Shandong Energy | China national standards | MT | 1059.94 | USD | 20251201 |
| Jinan Zhongyin Mat | China national standards | MT | 727.82 | USD | 20251201 |
| Lihuayi Shandong | China national standards | MT | 784.35 | USD | 20251201 |
| Zibo Renhao | China national standards | MT | 1271.92 | USD | 20251201 |
| Shandong Energy | China national standards | MT | 791.42 | USD | 20251201 |
| Nantong Zhonghe Chem | China national standards | MT | 805.55 | USD | 20251201 |
| Nanjing Baitu Chem | China national standards | MT | 847.95 | USD | 20251201 |
| CNPC | China national standards | MT | 713.69 | USD | 20251201 |
| Lihuayi Shandong | China national standards | MT | 713.69 | USD | 20251201 |