| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng | China national standards | MT | 1214.26 | USD | 20251114 |
| Shandong Junfeng | N220 | MT | 988.35 | USD | 20251114 |
| Hebei Shibei Rubber | N220 | MT | 960.11 | USD | 20251114 |
| Shanxi Hengxin Chem | N220 | MT | 1214.26 | USD | 20251114 |
| Shanxi Hengxin Chem | N220 | MT | 945.99 | USD | 20251114 |
| Dongguan Canyu Chem | N220 | MT | 974.23 | USD | 20251114 |
| Shandong Junfeng | China national standards | MT | 1213.58 | USD | 20251113 |
| Shandong Junfeng | N220 | MT | 987.79 | USD | 20251113 |
| Shandong Junfeng | N220 | MT | 988.24 | USD | 20251112 |
| Shandong Junfeng | China national standards | MT | 1214.12 | USD | 20251112 |