| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1045.8 | USD | 20251201 |
| Sinopec | China national standards | MT | 890.35 | USD | 20251201 |
| Lihuayi Shandong | China national standards | MT | 1059.94 | USD | 20251201 |
| Luxi Chem | China national standards | MT | 1413.25 | USD | 20251201 |
| Luxi Chem | China national standards | MT | 869.15 | USD | 20251201 |
| Luxi Chem | China national standards | MT | 1017.54 | USD | 20251201 |
| Shandong Zhiheng | China national standards | MT | 1052.87 | USD | 20251201 |
| Luxi Chem | China national standards | MT | 911.54 | USD | 20251201 |
| Lihuayi Shandong | China national standards | MT | 1031.67 | USD | 20251201 |
| Shandong Hongyang Chem | China national standards | MT | 1130.6 | USD | 20251201 |