| Vendor | Spec | Unit | Price | Currency | Date |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.28 | USD | 20250929 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1110.3 | USD | 20250928 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1110.3 | USD | 20250926 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1110.3 | USD | 20250926 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.78 | USD | 20250925 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.78 | USD | 20250925 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.78 | USD | 20250924 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.78 | USD | 20250924 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.78 | USD | 20250923 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.02 | USD | 20250922 |