Investors who want to sell Shanghai shares through the Shanghai-Hong Kong Connect will be required to submit an application before 07:30am the day of the trade in order to allow the two exchanges to settle the trade in compliance with mainland China regulations, Bloomberg reported, citing the Hong Kong Exchanges & Clearing. The rule is more restrictive than the so-called T+2 settlement system used in Hong Kong and other major stock markets, which allows investors to buy and sell shares without transferring cash or the securities before the trades. The exchange link is set to start on October 13.