| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 1223.53 | USD | 20250922 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 1209.46 | USD | 20250922 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 1223.15 | USD | 20250919 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 1209.09 | USD | 20250919 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 1209.82 | USD | 20250918 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 1223.89 | USD | 20250918 |