| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 945.26 | USD | 20251031 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 945.26 | USD | 20251031 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 945.26 | USD | 20251031 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 945.47 | USD | 20251030 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 945.47 | USD | 20251030 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 945.75 | USD | 20251029 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 966.93 | USD | 20251029 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 952.64 | USD | 20251028 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 966.75 | USD | 20251028 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 966.41 | USD | 20251027 |