The balance sheet shows that in 2021, inventory increased by 0.233 billion, exceeding the net income of 0.132 billion for that year, and accounted for 40% of the revenue, this change is very abnormal. In the first two quarters of 2022, inventory increased by 0.103 billion again, exceeding the cumulative net profit of 73.11 million for the first two quarters, this needs to be handled with special care.