Fund managers and brokers air concerns over trading rules, tax provisions of Shanghai-HK Stock Connect, reports Emma Dai.

With the Shanghai-Hong Kong Stock Connect program set to start next month, fund firms and stockbrokers in Hong Kong are seeking clarity over trading rules, some of which have raised concerns among the investment community.

One rule that has many scratching their heads is "pre-trade checking for sell orders", said Sally Wong, chief executive officer of the Hong Kong Investment Funds Association.