| Vendor | Spec | Unit | Price | Currency | Date |
| Qingdao Shengze Chem | China national standards | MT | 973.48 | USD | 20251101 |
| Shandong Hualu | China national standards | MT | 1100.45 | USD | 20251101 |
| Shandong Aite Chem | China national standards | MT | 1100.45 | USD | 20251101 |
| Shandong Aite Chem | China national standards | MT | 1128.67 | USD | 20251101 |
| Shandong Haili Chem | China national standards | MT | 1128.67 | USD | 20251101 |
| Shandong Aite Chem | China national standards | MT | 1128.67 | USD | 20251101 |
| Shandong Aite Chem | China national standards | MT | 1128.67 | USD | 20251101 |
| Shandong Yushuo Chem | China national standards | MT | 987.58 | USD | 20251031 |
| Shandong Yushuo Chem | China national standards | MT | 1001.69 | USD | 20251031 |
| Nanjing Waien Chem | China national standards | MT | 945.26 | USD | 20251031 |