| Vendor | Spec | Unit | Price | Currency | Date |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 891.27 | USD | 20251211 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 890.41 | USD | 20251203 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 890.35 | USD | 20251201 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 889.97 | USD | 20251128 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 890.09 | USD | 20251127 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 889.88 | USD | 20251126 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 840.1 | USD | 20251115 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 840.0 | USD | 20251112 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1044.02 | USD | 20251031 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1043.0 | USD | 20251017 |