| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Chem | China national standards | MT | 1271.83 | USD | 20251208 |
| Guangzhou Tianyue Chem | China national standards | MT | 1215.31 | USD | 20251208 |
| Shandong Shuojia Chem | China national standards | MT | 975.07 | USD | 20251208 |
| Shandong Yushuo Chem | China national standards | MT | 1003.34 | USD | 20251208 |
| Jinan Jinrihe Chem | China national standards | MT | 932.68 | USD | 20251208 |
| Shandong Shuojia Chem | China national standards | MT | 975.07 | USD | 20251208 |
| Shandong Yushuo Chem | China national standards | MT | 932.68 | USD | 20251208 |
| Shandong Yushuo Chem | China national standards | MT | 975.07 | USD | 20251208 |
| Yangmei Taihua Coke | China national standards | MT | 989.2 | USD | 20251208 |
| Shandong Shuojia Chem | China national standards | MT | 975.07 | USD | 20251208 |