| Vendor | Spec | Unit | Price | Currency | Date |
| Derun Chemical Co., Ltd. | China national standards | MT | 932.35 | USD | 20251128 |
| Derun Chemical Co., Ltd. | China national standards | MT | 932.26 | USD | 20251126 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1115.88 | USD | 20251126 |
| Derun Chemical Co., Ltd. | China national standards | MT | 931.86 | USD | 20251125 |
| Derun Chemical Co., Ltd. | China national standards | MT | 931.58 | USD | 20251124 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1115.08 | USD | 20251124 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1114.64 | USD | 20251122 |
| Derun Chemical Co., Ltd. | China national standards | MT | 931.22 | USD | 20251121 |
| Derun Chemical Co., Ltd. | China national standards | MT | 930.82 | USD | 20251120 |
| Derun Chemical Co., Ltd. | China national standards | MT | 931.26 | USD | 20251119 |