| Vendor | Spec | Unit | Price | Currency | Date |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 679.06 | USD | 20251211 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 678.42 | USD | 20251210 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 678.22 | USD | 20251209 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 678.31 | USD | 20251208 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 678.45 | USD | 20251206 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 678.41 | USD | 20251203 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 678.02 | USD | 20251202 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 678.36 | USD | 20251201 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 678.07 | USD | 20251129 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 678.07 | USD | 20251128 |