| Vendor | Spec | Unit | Price | Currency | Date |
| Jinan Jiaxing Chem | China national standards | MT | 819.63 | USD | 20251208 |
| Jinan Jiaxing Chem | China national standards | MT | 890.28 | USD | 20251208 |
| Sinopec | China national standards | MT | 727.93 | USD | 20251207 |
| Shandong Yihe Chem | China national standards | MT | 805.67 | USD | 20251207 |
| Qilu Petrochem | China national standards | MT | 727.93 | USD | 20251207 |
| Shandong Yihe Chem | China national standards | MT | 798.6 | USD | 20251207 |
| Shandong Chambroad | China national standards | MT | 734.99 | USD | 20251207 |
| Shandong Chambroad | China national standards | MT | 727.93 | USD | 20251207 |
| Qingdao Shengze Chem | China national standards | MT | 734.99 | USD | 20251207 |
| Shandong Chambroad | China national standards | MT | 727.93 | USD | 20251206 |