| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Zhiheng | China national standards | MT | 1413.15 | USD | 20251208 |
| Shandong Hongyang Chem | China national standards | MT | 1434.35 | USD | 20251208 |
| Shandong Xingpeng Chem | China national standards | MT | 1116.39 | USD | 20251208 |
| Shandong Jinling Chem | China national standards | MT | 1102.26 | USD | 20251208 |
| Shandong Langchem | China national standards | MT | 1257.7 | USD | 20251208 |
| Shandong Zhenkun | China national standards | MT | 1000.51 | USD | 20251208 |
| Shandong Hongyang Chem | China national standards | MT | 1434.35 | USD | 20251208 |
| Shandong Huize Chem | China national standards | MT | 1155.96 | USD | 20251208 |
| Dongying Huatai Chem | China national standards | MT | 1102.26 | USD | 20251208 |
| Dongying Huatai Chem | China national standards | MT | 1102.26 | USD | 20251208 |