| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 875.84 | USD | 20251128 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 875.97 | USD | 20251127 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 875.76 | USD | 20251126 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 875.38 | USD | 20251125 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 875.13 | USD | 20251124 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 874.78 | USD | 20251123 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 874.78 | USD | 20251121 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 874.41 | USD | 20251120 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 874.82 | USD | 20251119 |
| Shandong Yihe Fine Chemical Co., Ltd. | 85% | MT | 875.01 | USD | 20251118 |