| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 933.71 | USD | 20251211 |
| Shandong Zhiheng | China national standards | MT | 933.71 | USD | 20251211 |
| Shandong Hongyang Chem | China national standards | MT | 926.63 | USD | 20251211 |
| Shandong Hongyang Chem | China national standards | MT | 947.85 | USD | 20251211 |
| Shandong Hongyang Chem | China national standards | MT | 933.71 | USD | 20251211 |
| Aite Zhejiang | China national standards | MT | 990.3 | USD | 20251211 |
| Aite Zhejiang | China national standards | MT | 919.56 | USD | 20251211 |
| Shanghai Guoke | China national standards | MT | 1160.06 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 923.8 | USD | 20251211 |
| Shandong Langchem | China national standards | MT | 930.88 | USD | 20251211 |