| Vendor | Spec | Unit | Price | Currency | Date |
| Dongguan Canyu Chem | N220 | MT | 1212.0 | USD | 20250331 |
| Hebei Shibei Rubber | N220 | MT | 1225.93 | USD | 20250331 |
| Dongguan Canyu Chem | N220 | MT | 1212.51 | USD | 20250328 |
| Hebei Shibei Rubber | N220 | MT | 1240.38 | USD | 20250328 |
| Dongguan Canyu Chem | N220 | MT | 1212.32 | USD | 20250327 |
| Hebei Shibei Rubber | N220 | MT | 1240.19 | USD | 20250327 |
| Dongguan Canyu Chem | N220 | MT | 1226.41 | USD | 20250320 |
| Hebei Shibei Rubber | N220 | MT | 1282.16 | USD | 20250320 |
| Hebei Shibei Rubber | N220 | MT | 1338.15 | USD | 20250311 |
| Dongguan Canyu Chem | N220 | MT | 1282.39 | USD | 20250311 |