| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1202.95 | USD | 20250714 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1021.11 | USD | 20250714 |
| Hebei Shibei Rubber Technology Development Co., Ltd. | N220 | MT | 1014.11 | USD | 20250714 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 979.36 | USD | 20250712 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1203.22 | USD | 20250712 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 979.36 | USD | 20250711 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1203.22 | USD | 20250711 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1034.82 | USD | 20250710 |
| Hebei Shibei Rubber Technology Development Co., Ltd. | N220 | MT | 1041.81 | USD | 20250710 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1202.11 | USD | 20250709 |