| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Hongyang Chem | China national standards | MT | 1428.61 | USD | 20251010 |
| Shandong Zhiheng | China national standards | MT | 1330.09 | USD | 20251010 |
| Shandong Zhiheng | China national standards | MT | 1407.5 | USD | 20251010 |
| Shandong Zhenkun | China national standards | MT | 996.51 | USD | 20251010 |
| Shandong Zhenkun | China national standards | MT | 996.51 | USD | 20251010 |
| Shandong Zhenkun | China national standards | MT | 996.51 | USD | 20251010 |
| Shandong Zhenkun | China national standards | MT | 996.51 | USD | 20251010 |
| Dongying Huatai Chem | China national standards | MT | 1068.89 | USD | 20251009 |
| Dongying Huatai Chem | China national standards | MT | 1068.89 | USD | 20251009 |
| Dongying Huatai Chem | China national standards | MT | 1068.89 | USD | 20251009 |