According to the Securities Daily, this year, six listed companies in the Shanghai and Shenzhen stock exchanges have issued regulatory letters for the blockchain business, except for Selis, Hengshun Zhongsheng, Shenzhen Datong, Anne, Monternet, and accurate information. Both are on the list. Among them, in recent days, Shenzhen Datong has been repeatedly inquired about the blockchain technology, focusing on the relationship between the Shenzhen-Taiwan blockchain technology and the industrial cannabis business. It is worth noting that only the accurate information in the listed companies clearly indicates that the blockchain technology brings real income. At present, listed companies have strong capital, and the layout blockchain technology has natural advantages. However, most of them face difficulties in landing technology and zero income.