| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 985.98 | USD | 20251015 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1211.35 | USD | 20251015 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1211.35 | USD | 20251015 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1000.07 | USD | 20251015 |
| Hebei Shibei Rubber Technology Development Co., Ltd. | N220 | MT | 1042.33 | USD | 20251015 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1042.33 | USD | 20251015 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1210.91 | USD | 20251014 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 985.62 | USD | 20251014 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1210.91 | USD | 20251014 |
| Jinan Jinquanjin Economy & Trade Co., Ltd. | China national standards | MT | 1900.85 | USD | 20251014 |