| 日期 | 玉米淀粉 | 木薯淀粉 | 价差 |
| 2021/11/29 | 3530 | 4380 | -850 |
| 2021/11/26 | 3550 | 4380 | -830 |
| 2021/11/25 | 3580 | 4380 | -800 |
| 2021/11/24 | 3600 | 4450 | -850 |
| 2021/11/23 | 3600 | 4450 | -850 |
| 2021/11/22 | 3600 | 4450 | -850 |
| 2021/11/19 | 3600 | 4450 | -850 |
| 2021/11/18 | 3650 | 4450 | -800 |
| 2021/11/17 | 3700 | 4450 | -750 |
| 2021/11/16 | 3700 | 4380 | -680 |
备注：1、各品种取价如下：玉米淀粉、玉米为山东潍坊市场主流价；2、单位：元/吨
