| Vendor | Spec | Unit | Price | Currency | Date |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1582.95 | USD | 20251203 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1582.84 | USD | 20251201 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1582.17 | USD | 20251128 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1582.39 | USD | 20251127 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1582.01 | USD | 20251126 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1602.54 | USD | 20251115 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1602.36 | USD | 20251112 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1763.54 | USD | 20251031 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1761.83 | USD | 20251017 |
| Hunan Jinyu Fine Chemical Co., Ltd. | China national standards | MT | 1687.1 | USD | 20250919 |