But at the same time, it was found that there was a dividend of 8.62 million in preferred shares in 2021, this part should also be considered as interest expense, with a total interest of 10.63 million, accounting for 38.7% of operating profit, the pressure suddenly increased. After adjustment, the pre-tax net profit for 2021 was 16.85 million, compared to 1.673 million in 2020, showing much higher growth.