Hong Kong Exchanges and Clearing Limited (HKEx) has announced the following holiday risk management arrangements.

HSI, MHI, HHI and HB3 Markets

There will be a mandatory intra-day variation adjustment call in the Hang Seng Index (HSI), Mini-Hang Seng Index (MHI), H-shares Index (HHI) and Three-month HIBOR (HB3) markets on Wednesday, 23 May 2007 based on open positions in the markets at around 3:00 pm on 23 May.

Stock Options Market

There will be a special intra-day margin call on Wednesday, 23 May 2007 in respect of all open positions in the stock options market at around 3:00 pm on 23 May.

The above arrangements are based on the clearing houses’ normal procedures.

Exchange Participants have been advised to give advanced notice to their clients regarding the arrangements where appropriate.