| Vendor | Spec | Unit | Price | Currency | Date |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.08 | USD | 20251009 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.81 | USD | 20251008 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.81 | USD | 20251006 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.81 | USD | 20251005 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.81 | USD | 20251004 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.81 | USD | 20251003 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.81 | USD | 20251002 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.81 | USD | 20251001 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.81 | USD | 20250930 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.28 | USD | 20250929 |