| Vendor | Spec | Unit | Price | Currency | Date |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 190.99 | USD | 20251211 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 190.8 | USD | 20251210 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 190.75 | USD | 20251209 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 190.77 | USD | 20251208 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 190.82 | USD | 20251206 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 190.8 | USD | 20251203 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 190.69 | USD | 20251202 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 190.79 | USD | 20251201 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 190.71 | USD | 20251128 |
| Chengdu Rongjiaxin Chemical Products Co., Ltd. | China national standards | MT | 190.73 | USD | 20251127 |