Alto Electronics (002587) released a message that recently, the company's controlling subsidiary, Alto Hanming, received a bidding notice from the Construction Bank to inform Alto Hamming to win the bid for the E depository prototype project. The project is based on blockchain technology to design and implement application prototypes for the issuance, transfer, query and cancellation of depositary receipts (CDRs). It can help commercial banks to further explore the management process of depositary receipts (CDR) and better. Local service issuer, holder, and overseas conversion agency. The results of the project will guide the implementation of the follow-up project.