| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng | N220 | MT | 979.05 | USD | 20250715 |
| Shandong Junfeng | N220 | MT | 979.14 | USD | 20250714 |
| Shandong Junfeng | China national standards | MT | 1202.95 | USD | 20250714 |
| Dongguan Canyu Chem | N220 | MT | 1021.11 | USD | 20250714 |
| Hebei Shibei Rubber | N220 | MT | 1014.11 | USD | 20250714 |
| Shandong Junfeng | N220 | MT | 979.36 | USD | 20250712 |
| Shandong Junfeng | China national standards | MT | 1203.22 | USD | 20250712 |
| Shandong Junfeng | N220 | MT | 979.36 | USD | 20250711 |
| Shandong Junfeng | China national standards | MT | 1203.22 | USD | 20250711 |
| Dongguan Canyu Chem | N220 | MT | 1034.82 | USD | 20250710 |