| Vendor | Spec | Unit | Price | Currency | Date |
| Derun Chemical Co., Ltd. | China national standards | MT | 933.09 | USD | 20251204 |
| Derun Chemical Co., Ltd. | China national standards | MT | 933.09 | USD | 20251204 |
| Derun Chemical Co., Ltd. | China national standards | MT | 932.81 | USD | 20251203 |
| Derun Chemical Co., Ltd. | China national standards | MT | 932.28 | USD | 20251202 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1115.91 | USD | 20251202 |
| Derun Chemical Co., Ltd. | China national standards | MT | 932.74 | USD | 20251201 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1116.47 | USD | 20251201 |
| Derun Chemical Co., Ltd. | China national standards | MT | 932.35 | USD | 20251129 |
| Derun Chemical Co., Ltd. | China national standards | MT | 1115.99 | USD | 20251128 |
| Derun Chemical Co., Ltd. | China national standards | MT | 932.35 | USD | 20251128 |