Amendments to the Options Trading Rules in relation to streamlining the approval and registration process of Responsible Officers and Authorized Persons of Exchange Participants (take effect from 20 June 2008)

Amendments to the Options Trading Rules in relation to order aggregation for Block Trades (take effect from 28 April 2008)

Amendments to the Options Trading Rules in relation to the enhanced trading functionality of block trades in the automated trading system (HKATS) operated by the Hong Kong Futures Exchange Limited (take effect from 3 March 2008)

Amendments to the Options Trading Rules in relation to the introduction of third party clearing by Hong Kong Securities Clearing Company Limited (take effect from 3 December 2007)

Amendments to the Options Trading Rules in relation to the execution requirements in block trades (take effect from 3 September 2007)

Amendments to the Options Trading Rules in relation to the 2 tier banking structure for money settlement purposes (take effect from 18 June 2007)

Amendments to the Options Trading Rules in relation to the use of Client Offset Claim Account (take effect from 3 July 2007)

Amendments to the Options Trading Rules in relation to the change in functions of the roles of the Chairman and the Chief Executive Officer of the Securities and Futures Commission (take effect from 5 March 2007)

Amendments to the Options Trading Rules to revise the maximum market making spreads and minimum quote size requirements for market makers (take effect from 2 April 2007)

Amendments to the Options Trading Rules in relation to streamlining the approval process for introducing options contracts (take effect from 19 October 2006)

Amendments to the Options Trading Rules in relation to market maker obligations for stock options (take effect from 3 July 2006)

Amendments to the Options Trading Rules in relation to adjustments to Stock Options Position Limits and Reporting Levels (take effect from 10 February 2006)

Amendments to the Options Trading Rules in relation to the handling of Capital Adjustments for Special Events (take effect from 1 July 2005)

Amendments to the Options Trading Rules in relation to the removal of the restriction on the number of Options Hedging Participants which a Market Maker can appoint (take effect from 21 April 2005)

Amendments to the Options Trading Rules in relation to abolition of the registration requirements for Options Officers and Options Representatives (take effect from 1 April 2005)

Amendments to the Options Trading Rules in relation to expanding and rationalising the powers of the Chief Executive of the Stock Exchange to take swift action against a defaulting Exchange Participant (take effect from 1 February 2005)

Amendments to the Options Trading Rules in relation to the reduction of the trading tariff for Tier 1 stock option classes, the narrowing of strike intervals and the provision of continuous quotations by market makers (take effect from 1 February 2005)

Amendments to the Options Trading Rules relating to the implementation of the Derivatives Clearing And Settlement System (take effect from 6 April 2004)