| Vendor | Spec | Unit | Price | Currency | Date |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 966.75 | USD | 20251028 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 952.3 | USD | 20251027 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 966.41 | USD | 20251027 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 965.77 | USD | 20251024 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 944.75 | USD | 20251023 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 965.9 | USD | 20251023 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 965.41 | USD | 20251022 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 944.27 | USD | 20251022 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 965.74 | USD | 20251021 |
| Nanjing Waien Chemical Technology Co., Ltd. | China national standards | MT | 958.11 | USD | 20251020 |