Rule Amendments
| Title of Amendment | Effective Date |
| SGX-ST Trading Rules | |
| Amendment to SGX-ST Rule 14.6.8(1) | 1 January 20051 January 2005 |
| Amendment to SGX-ST Rule 11.12.2 - 3 | 20 June 200520 June 2005 |
| Amendment to SGX-ST Rule 13.4 & Practice Note 13.4.1 | 1 July 20051 July 2005 |
| Obligations of a Designated Market Maker, Directive No. 3 | 1 July 20051 July 2005 |
| Consequential amendment to SGX-ST Rule 4.2.4 | 12 October 200512 October 2005 |
| Consequential amendment to SGX-ST Rule 5.2.4 | 12 October 200512 October 2005 |
| Consequential amendment to SGX-ST Rule 7.2.4 | 12 October 200512 October 2005 |
| Conforming & Consequential Amendment to SGX-ST Rule 11.9.11-12, 11.9.16,11.11.2 | 12 October 200512 October 2005 |
| Amendment to SGX-ST Rule 14.8.2 - Decision of Appeals Committee Final | 12 October 200512 October 2005 |
| Consequential amendment to Monthly Return | 12 October 200512 October 2005 |
| New Practice Note 8.2.2 - Procedures for Contingency Order Withdrawal | 2 November 20052 November 2005 |
| SGX-ST Rule Amendment to align Margin Financing Computation Requirements with new Securities & Futures (Financial and Margin Requirements for Capital Markets Services Licences) Regulations, Chapter 11 | 14 November 200514 November 2005 |
| Amendments to SGX-ST Rule 14.7.1 - Re-constitution of Appeals Committee | 30 November 200530 November 2005 |
| CDP Clearing Rules | |
| Amendment to CDP Clearing Rule 5.10.2 - 3 | 20 June 200520 June 2005 |
| Consequential amendment to CDP Clearing Rule 1.2.1 | 12 October 200512 October 2005 |
| Consequential amendment to CDP Clearing Rule 3.2.3 | 12 October 200512 October 2005 |
| Consequential amendment to CDP Clearing Rule 5.9.2 | 12 October 200512 October 2005 |
| Amendment to CDP Clearing Rule 11.8.2 - Decision of Appeals Committee Final | 12 October 200512 October 2005 |
| Consequential amendment to Schedule 1D | 12 October 200512 October 2005 |
| Amendments to CDP Clearing Rule 11.7.1 - Re-constitution of Appeals Committee | 30 November 200530 November 2005 |
| SGX-DC Clearing Rules | |
| Notification of decision of Disciplinary Committee | 8 June 20058 June 2005 |
| Deletion of reference to Futures Trading Act and Futures Trading Regulation in Chapter 1 | 12 October 200512 October 2005 |
| Deletion of reference to Futures Trading Act and Futures Trading Regulation in Chapter 2 | 12 October 200512 October 2005 |
| Amendment to SGX-DC Rule 4.09(4) - Decision of Appeals Committee Final | 12 October 200512 October 2005 |
| Consequential amendment to SGX-DC Rule 7.03(1) | 12 October 200512 October 2005 |