| Vendor | Spec | Unit | Price | Currency | Date |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.77 | USD | 20251010 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.77 | USD | 20251010 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.47 | USD | 20250929 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.47 | USD | 20250929 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.01 | USD | 20250928 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.01 | USD | 20250928 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.01 | USD | 20250927 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.01 | USD | 20250927 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.01 | USD | 20250926 |
| Guangzhou Tianyue Chemical Co., Ltd. | China national standards | MT | 520.01 | USD | 20250926 |