| Vendor | Spec | Unit | Price | Currency | Date |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 394.39 | USD | 20251015 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 394.25 | USD | 20251014 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 394.33 | USD | 20251013 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 408.17 | USD | 20251011 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 408.17 | USD | 20251010 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 407.86 | USD | 20251009 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 408.13 | USD | 20251008 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 408.13 | USD | 20251007 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 407.94 | USD | 20250929 |
| Suzhou Shangma Chemical Technology Co., Ltd. | China national standards | MT | 407.58 | USD | 20250928 |