| Vendor | Spec | Unit | Price | Currency | Date |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1018.59 | USD | 20251211 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1017.61 | USD | 20251203 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1017.54 | USD | 20251201 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1017.11 | USD | 20251128 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1017.25 | USD | 20251127 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1017.01 | USD | 20251126 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1016.59 | USD | 20251115 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1016.48 | USD | 20251112 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1100.45 | USD | 20251031 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1099.38 | USD | 20251017 |