| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Chengxin Chem | China national standards | MT | 1054.08 | USD | 20250926 |
| Shandong Zhenkun | China national standards | MT | 1075.16 | USD | 20250926 |
| Aite Zhejiang | China national standards | MT | 1068.14 | USD | 20250926 |
| Aite Zhejiang | China national standards | MT | 1025.97 | USD | 20250926 |
| Shandong Huize Chem | China national standards | MT | 1040.03 | USD | 20250926 |
| Shandong Huize Chem | China national standards | MT | 1040.03 | USD | 20250926 |
| Nantong Zhonghe Chem | China national standards | MT | 1115.92 | USD | 20250926 |
| Shandong Hualu | China national standards | MT | 969.75 | USD | 20250926 |
| Shandong Langchem | China national standards | MT | 1096.24 | USD | 20250926 |
| Shandong Langchem | China national standards | MT | 1075.16 | USD | 20250926 |