| Vendor | Spec | Unit | Price | Currency | Date |
| Zibo Lishuo Chem | China national standards | MT | 846.25 | USD | 20251105 |
| Jinan Jinhao Chem | China national standards | MT | 1114.23 | USD | 20251105 |
| Shandong Kaitai Petro | China national standards | MT | 916.77 | USD | 20251105 |
| Shandong Kaitai Petro | China national standards | MT | 888.56 | USD | 20251105 |
| Shandong Langchem | China national standards | MT | 987.29 | USD | 20251105 |
| Shandong Mingyu | China national standards | MT | 888.56 | USD | 20251105 |
| Shandong Qiangsen Chem | China national standards | MT | 818.04 | USD | 20251105 |
| Wanhua Yantai | China national standards | MT | 818.04 | USD | 20251105 |
| Wanhua Yantai | China national standards | MT | 888.56 | USD | 20251105 |
| Wanhua Yantai | China national standards | MT | 832.15 | USD | 20251105 |