| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.71 | USD | 20250925 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.71 | USD | 20250925 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.71 | USD | 20250923 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.35 | USD | 20250922 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.35 | USD | 20250922 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.19 | USD | 20250919 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.19 | USD | 20250919 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.5 | USD | 20250918 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.5 | USD | 20250918 |