| Vendor | Spec | Unit | Price | Currency | Date |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 189.73 | USD | 20250927 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 189.73 | USD | 20250926 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 189.99 | USD | 20250925 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 189.99 | USD | 20250924 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 189.86 | USD | 20250922 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 189.8 | USD | 20250920 |