| Vendor | Spec | Unit | Price | Currency | Date |
| Wanhua Yantai | China national standards | MT | 790.07 | USD | 20251101 |
| Zibo Lishuo Chem | China national standards | MT | 846.5 | USD | 20251101 |
| Zibo Lishuo Chem | China national standards | MT | 846.5 | USD | 20251101 |
| Shandong Kaitai Petro | China national standards | MT | 888.83 | USD | 20251101 |
| Shandong Langchem | China national standards | MT | 987.58 | USD | 20251101 |
| Shandong Yihe Chem | China national standards | MT | 790.07 | USD | 20251101 |
| Jinan Pulaihua Chem | China national standards | MT | 804.18 | USD | 20251031 |
| Shandong Jinwen Chem | China national standards | MT | 987.58 | USD | 20251031 |
| Shandong Kaitai Petro | China national standards | MT | 917.04 | USD | 20251031 |
| Shandong Kaitai Petro | China national standards | MT | 888.83 | USD | 20251031 |