taking the emergence two years ago of new china 's first rmb special stocks on the shanghai securities market as an indication , the chinese mainland 's securities markets in reality are already moving towards international capital markets , and last year the shanghai stock exchange 's b shares listings went from 9 to 22 , while the market overall volume increased from 800 million yuan to more than 1.8 billion yuan ; in addition , at present 50 overseas securities trading house representatives have seats on the shanghai stock exchange , and this means for foreign circles that the door to china 's securities market is wide open .