| Vendor | Spec | Unit | Price | Currency | Date |
| Derun Chemical Co., Ltd. | China national standards | MT | 930.25 | USD | 20251017 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1113.48 | USD | 20251017 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1113.18 | USD | 20251016 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1113.18 | USD | 20251016 |
| Derun Chemical Co., Ltd. | China national standards | MT | 930.0 | USD | 20251016 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1112.75 | USD | 20251015 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1112.35 | USD | 20251014 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1112.57 | USD | 20251013 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.92 | USD | 20251011 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1111.92 | USD | 20251010 |