| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 945.45 | USD | 20251111 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 917.35 | USD | 20251110 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 945.85 | USD | 20251107 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 917.61 | USD | 20251107 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 945.46 | USD | 20251106 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 938.4 | USD | 20251106 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 944.98 | USD | 20251105 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 945.19 | USD | 20251104 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 945.43 | USD | 20251103 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 945.43 | USD | 20251103 |