| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1204.79 | USD | 20250808 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1205.41 | USD | 20250807 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 981.15 | USD | 20250807 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 980.27 | USD | 20250806 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1204.33 | USD | 20250806 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1205.06 | USD | 20250805 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 980.86 | USD | 20250805 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 980.46 | USD | 20250804 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1204.57 | USD | 20250804 |
| Hebei Shibei Rubber Technology Development Co., Ltd. | N220 | MT | 1029.48 | USD | 20250804 |