Phase 1 of the Closing Auction Session (CAS) is confirmed to be launched on 25 July 2016 (Monday) by the Stock Exchange of Hong Kong Limited (HKEx). The Trading Hours for the Derivatives Market (including Stock Index Futures / Options, Currency Futures and Commodity Futures) will be changed. For full details of the closing auction model for the CAS, please refer to the HKEx website: http://www.hkex.com.hk/cas/en/index.htm