Four indexes are expected to be issued on April 3 this year by Shanghai Stock Exchange and China Securities Index, the Shanghai Stock Exchange announced on Monday.

The four indexes focus on development strategies of the country's main industries and regions including new energy, industrial machinery, the Yangtze River Delta and Guangdong-Hong Kong-Macao Greater Bay Area.

These indexes will continue to enrich the science and innovation board index system and will better meet investors' needs for diversified asset allocation.

The new energy and the industrial machinery indexes of the Shanghai Science and Innovation Board will select 50 securities of listed companies with large market values in corresponding fields as samples to reflect the overall performance of listed companies' securities in respective fields.

The market value coverage of each index in the corresponding fields of the Science and Innovation board market exceeded 80 percent with good representativeness and investability.

The Yangtze River Delta and Guangdong-Hong Kong-Macao Greater Bay Area indexes of the Shanghai Science and Technology Innovation Board, mainly focusing on regional coordination, will select 50 sample securities of listed companies with large market values registered in these two regions respectively.

Currently, over 230 companies on the Science and Technology innovation Boards are from the Yangtze River Delta and the Guangdong-Hong Kong-Macao Greater Bay Area.

Historical data indicated that the average growth rates of the number and total market value in each quarter were both above 20 percent, which formed a certain agglomeration effect.

Shanghai Stock Exchange and China Securities Index are projected to introduce more indexes to promote high-quality development of the real economy.