The Shanghai Stock Exchange, Shenzhen Stock Exchange, Growth Enterprise Market and Science and Technology Innovation Board all have stocks in the military sector, and the military stocks in that sector belong to that sector. Investors can distinguish which sector the stock belongs to by the stock code. The Shanghai stock code starts with 600, 60 1 and 603, the Shenzhen stock code starts with 000, 002 and 003, the GEM stock code starts with 300, and the science and technology innovation board stock code starts with 688.