| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng | N220 | MT | 988.24 | USD | 20251112 |
| Shandong Junfeng | N220 | MT | 988.24 | USD | 20251112 |
| Shanxi Hengxin Chem | N220 | MT | 1214.12 | USD | 20251112 |
| Shandong Junfeng | N220 | MT | 987.78 | USD | 20251111 |
| Shandong Junfeng | China national standards | MT | 1213.56 | USD | 20251111 |
| Shanxi Hengxin Chem | N220 | MT | 931.47 | USD | 20251110 |
| Hebei Shibei Rubber | N220 | MT | 973.81 | USD | 20251110 |
| Dongguan Canyu Chem | N220 | MT | 987.92 | USD | 20251110 |
| Shanxi Hengxin Chem | N220 | MT | 1213.73 | USD | 20251110 |
| Shandong Junfeng | N220 | MT | 988.2 | USD | 20251107 |