| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 872.98 | USD | 20251014 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 873.15 | USD | 20251013 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 872.65 | USD | 20251011 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 872.65 | USD | 20251010 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 871.99 | USD | 20251009 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 872.56 | USD | 20251008 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 872.56 | USD | 20251007 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 872.15 | USD | 20250929 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 871.37 | USD | 20250928 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 871.37 | USD | 20250927 |