| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Jinling Chem | China national standards | MT | 1058.13 | USD | 20251101 |
| Shandong Junfeng | China national standards | MT | 1058.13 | USD | 20251101 |
| Dongying Huatai Chem | China national standards | MT | 1100.45 | USD | 20251101 |
| Shandong Jinling Chem | China national standards | MT | 1121.61 | USD | 20251031 |
| Dongying Huatai Chem | China national standards | MT | 1100.45 | USD | 20251031 |
| Shandong Zhenkun | China national standards | MT | 998.87 | USD | 20251031 |
| Shandong Jinling | China national standards | MT | 1128.67 | USD | 20251031 |
| Dongying Huatai Chem | China national standards | MT | 1100.45 | USD | 20251031 |
| Dongying Huatai Chem | China national standards | MT | 1100.45 | USD | 20251031 |
| Dongying Huatai Chem | China national standards | MT | 1100.45 | USD | 20251031 |