| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng | China national standards | MT | 1215.48 | USD | 20251203 |
| Shandong Junfeng | N220 | MT | 989.34 | USD | 20251203 |
| Shandong Junfeng | China national standards | MT | 1214.79 | USD | 20251202 |
| Dongguan Canyu Chem | N220 | MT | 974.66 | USD | 20251202 |
| Shandong Junfeng | N220 | MT | 988.78 | USD | 20251202 |
| Shanxi Hengxin Chem | N220 | MT | 946.41 | USD | 20251202 |
| Shanxi Hengxin Chem | N220 | MT | 1214.79 | USD | 20251202 |
| Hebei Shibei Rubber | N220 | MT | 960.53 | USD | 20251202 |
| Shanxi Hengxin Chem | N220 | MT | 1215.39 | USD | 20251201 |
| Shandong Junfeng | China national standards | MT | 1215.39 | USD | 20251201 |