| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1203.47 | USD | 20250722 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 979.57 | USD | 20250722 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1020.66 | USD | 20250721 |
| Hebei Shibei Rubber Technology Development Co., Ltd. | N220 | MT | 1013.67 | USD | 20250721 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 978.72 | USD | 20250721 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1202.43 | USD | 20250721 |
| Hebei Shibei Rubber Technology Development Co., Ltd. | N220 | MT | 1014.54 | USD | 20250717 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1021.54 | USD | 20250717 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1203.45 | USD | 20250717 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 979.56 | USD | 20250717 |