| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1188.43 | USD | 20251009 |
| Shandong Hongyang Chem | China national standards | MT | 1188.43 | USD | 20251009 |
| Shandong Qiangsen Chem | China national standards | MT | 1040.76 | USD | 20251009 |
| Jinan Dezheng Chem | China national standards | MT | 957.01 | USD | 20251008 |
| Jinan Dezheng Chem | China national standards | MT | 957.01 | USD | 20251008 |
| Shaanxi Yanchang Petro | China national standards | MT | 957.01 | USD | 20251008 |
| Sinopec | China national standards | MT | 957.01 | USD | 20251008 |
| Lihuayi Shandong | China national standards | MT | 957.01 | USD | 20251008 |
| Zibo Lishuo Chem | China national standards | MT | 985.15 | USD | 20251008 |
| Zibo Lishuo Chem | China national standards | MT | 985.15 | USD | 20251008 |