| Vendor | Spec | Unit | Price | Currency | Date |
| Derun Chemical Co., Ltd. | China national standards | MT | 931.47 | USD | 20251110 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1114.94 | USD | 20251110 |
| Derun Chemical Co., Ltd. | China national standards | MT | 931.73 | USD | 20251107 |
| Derun Chemical Co., Ltd. | China national standards | MT | 931.35 | USD | 20251106 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1114.8 | USD | 20251106 |
| Derun Chemical Co., Ltd. | China national standards | MT | 930.88 | USD | 20251105 |
| Derun Chemical Co., Ltd. | China national standards | MT | 931.09 | USD | 20251104 |
| Derun Chemical Co., Ltd. | China national standards | MT | 931.32 | USD | 20251103 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1114.76 | USD | 20251103 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1114.56 | USD | 20251102 |