| Vendor | Spec | Unit | Price | Currency | Date |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1213.58 | USD | 20251106 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 931.35 | USD | 20251106 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 987.79 | USD | 20251106 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1213.58 | USD | 20251106 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 987.79 | USD | 20251106 |
| Shanxi Hengxin Chemical Co., Ltd. | N220 | MT | 1212.96 | USD | 20251105 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1212.96 | USD | 20251105 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 987.29 | USD | 20251105 |
| Shandong Junfeng New Materials Co., Ltd. | China national standards | MT | 1213.23 | USD | 20251104 |
| Shandong Junfeng New Materials Co., Ltd. | N220 | MT | 987.51 | USD | 20251104 |