| Vendor | Spec | Unit | Price | Currency | Date |
| Shanxi Hengxin Chem | N220 | MT | 1213.95 | USD | 20251029 |
| Shandong Junfeng | China national standards | MT | 1213.95 | USD | 20251029 |
| Shandong Junfeng | N220 | MT | 987.92 | USD | 20251028 |
| Shandong Junfeng | China national standards | MT | 1213.73 | USD | 20251028 |
| Shandong Junfeng | China national standards | MT | 1213.73 | USD | 20251028 |
| Shanxi Hengxin Chem | N220 | MT | 945.58 | USD | 20251028 |
| Shandong Junfeng | N220 | MT | 987.92 | USD | 20251028 |
| Shanxi Hengxin Chem | N220 | MT | 1213.73 | USD | 20251028 |
| Hebei Shibei Rubber | N220 | MT | 987.92 | USD | 20251028 |
| Dongguan Canyu Chem | N220 | MT | 1002.03 | USD | 20251028 |