| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 981.26 | USD | 20250814 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 981.08 | USD | 20250813 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1205.33 | USD | 20250813 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1204.18 | USD | 20250812 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 980.15 | USD | 20250812 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 980.32 | USD | 20250811 |
| Hebei Shibei Rubber Technology Development Co., Ltd. | N220 | MT | 1029.34 | USD | 20250811 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1050.35 | USD | 20250811 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1204.4 | USD | 20250811 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 980.64 | USD | 20250808 |