| Vendor | Spec | Unit | Price | Currency | Date |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1033.72 | USD | 20250630 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1032.54 | USD | 20250625 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1031.93 | USD | 20250623 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1029.41 | USD | 20250613 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1029.41 | USD | 20250609 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1057.23 | USD | 20250604 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1057.38 | USD | 20250527 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1035.71 | USD | 20250520 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1056.2 | USD | 20250514 |
| Dongguan Canyu Chemical Co., Ltd. | N220 | MT | 1054.16 | USD | 20250509 |