| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Longyu Chemical Co., Ltd. | China national standards | MT | 169.32 | USD | 20251119 |
| Guangzhou Longyu Chemical Co., Ltd. | China national standards | MT | 169.45 | USD | 20251117 |
| Guangzhou Longyu Chemical Co., Ltd. | China national standards | MT | 169.43 | USD | 20251114 |
| Guangzhou Longyu Chemical Co., Ltd. | China national standards | MT | 169.34 | USD | 20251113 |
| Guangzhou Longyu Chemical Co., Ltd. | China national standards | MT | 169.33 | USD | 20251111 |
| Guangzhou Longyu Chemical Co., Ltd. | China national standards | MT | 169.34 | USD | 20251106 |
| Guangzhou Longyu Chemical Co., Ltd. | China national standards | MT | 169.29 | USD | 20251104 |
| Guangzhou Longyu Chemical Co., Ltd. | China national standards | MT | 169.33 | USD | 20251103 |
| Guangzhou Longyu Chemical Co., Ltd. | China national standards | MT | 169.3 | USD | 20251031 |
| Guangzhou Longyu Chemical Co., Ltd. | China national standards | MT | 169.34 | USD | 20251030 |