| Vendor | Spec | Unit | Price | Currency | Date |
| Derun Chemical Co., Ltd. | China national standards | MT | 931.14 | USD | 20251027 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1113.81 | USD | 20251025 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1113.81 | USD | 20251024 |
| Derun Chemical Co., Ltd. | China national standards | MT | 930.52 | USD | 20251024 |
| Derun Chemical Co., Ltd. | China national standards | MT | 930.65 | USD | 20251023 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1113.96 | USD | 20251023 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1113.4 | USD | 20251022 |
| Derun Chemical Co., Ltd. | China national standards | MT | 930.49 | USD | 20251021 |
| Derun Chemical Co., Ltd. | China national standards | MT | 929.93 | USD | 20251020 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1113.1 | USD | 20251020 |