| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Pulanni Chemical Co., Ltd. | China national standards | MT | 904.41 | USD | 20251208 |
| Guangzhou Pulanni Chemical Co., Ltd. | China national standards | MT | 904.48 | USD | 20251201 |
| Guangzhou Pulanni Chemical Co., Ltd. | China national standards | MT | 904.22 | USD | 20251127 |
| Guangzhou Pulanni Chemical Co., Ltd. | China national standards | MT | 903.62 | USD | 20251125 |
| Guangzhou Pulanni Chemical Co., Ltd. | China national standards | MT | 903.0 | USD | 20251121 |
| Guangzhou Pulanni Chemical Co., Ltd. | China national standards | MT | 903.24 | USD | 20251118 |
| Guangzhou Pulanni Chemical Co., Ltd. | China national standards | MT | 903.75 | USD | 20251117 |
| Guangzhou Pulanni Chemical Co., Ltd. | China national standards | MT | 903.64 | USD | 20251114 |
| Guangzhou Pulanni Chemical Co., Ltd. | China national standards | MT | 903.14 | USD | 20251030 |
| Guangzhou Pulanni Chemical Co., Ltd. | China national standards | MT | 902.92 | USD | 20251027 |