| Vendor | Spec | Unit | Price | Currency | Date |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 945.58 | USD | 20251028 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 987.92 | USD | 20251028 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1213.73 | USD | 20251028 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1213.73 | USD | 20251028 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 987.92 | USD | 20251028 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1213.73 | USD | 20251028 |
| Hebei Shibei Rubber Technology Development Co., Ltd. | N220 | MT | 987.92 | USD | 20251028 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 987.57 | USD | 20251027 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1213.3 | USD | 20251027 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1213.3 | USD | 20251027 |