| Vendor | Spec | Unit | Price | Currency | Date |
| Shanxi Hengxin Chem | N220 | MT | 1212.05 | USD | 20251022 |
| Shandong Junfeng | N220 | MT | 986.55 | USD | 20251022 |
| Shandong Junfeng | China national standards | MT | 1212.05 | USD | 20251022 |
| Shanxi Hengxin Chem | N220 | MT | 972.46 | USD | 20251022 |
| Dongguan Canyu Chem | N220 | MT | 1014.74 | USD | 20251022 |
| Shandong Junfeng | N220 | MT | 986.89 | USD | 20251021 |
| Shandong Junfeng | China national standards | MT | 1212.46 | USD | 20251021 |
| Shanxi Hengxin Chem | N220 | MT | 1212.46 | USD | 20251021 |
| Dongguan Canyu Chem | N220 | MT | 1028.56 | USD | 20251020 |
| Shandong Junfeng | China national standards | MT | 1211.73 | USD | 20251020 |