Implementation details and official launch dates are yet to be announced by the respective stock exchanges as they move to enhance connections between China and the rest of the world.
UBS was found to have overcharged the post-trade spread for around 28,700 client transactions in Hong Kong over a ten-year period.
HKEX will develop new systems for the proposed paperless regime, which could be in place by early 2022.
HSBC failed to assess risk of individual bonds before recommending them to clients in Asia.
Financial authorities in Asia and the US fined agency broker Instinet for several violations related to market access and trading systems.