| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1196.34 | USD | 20250610 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1029.41 | USD | 20250609 |
| Hebei Shibei Rubber Technology Development Co., Ltd. | N220 | MT | 1050.27 | USD | 20250609 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1196.34 | USD | 20250609 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 973.76 | USD | 20250609 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 973.76 | USD | 20250606 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1293.72 | USD | 20250606 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1293.72 | USD | 20250605 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 973.76 | USD | 20250605 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1293.72 | USD | 20250604 |