One of the pioneers of Minimally Invasive Surgery in Asia.

President of Singapore ELSA, Chapter of Endoscopic and Laparoscopic Surgeons of Asia.

Founding Member of Society of Endoscopic and Laparoscopic Surgeons of Asia.

Represents Singapore in the Board of Governors of the Endoscopic and Laparoscopic Surgeons of Asia.

Leader of the Singapore International Foundation Specialist Team on Laparoscopic Surgery from 1996 - 2002.

Member of the Medical Advisory Board of the Singapore International Foundation.

Conducted one of the first few randomised controlled trials on Laparoscopic Appendectomy in the world.

Awarded Best Oral Presentation in the European Association of Endoscopic Surgery Conference in 1995.

Scientific Chairman, World Congress of Surgery, Singapore 2000

Numerous invitations to speak on Laparoscopic and Colorectal Surgery worldwide.

Published more than 60 pages and 7 book chapters

Invited Speaker - Application of Robotic Surgery in General Surgery october 2006, Seoul, Korea

Invited Speaker - On Robotic Surgery June,2007, Hongkong

Invited Speaker - Laparoscopic Surgery for Colorectal Disease in Advanced Laparoscopic Symposium, Arab Health Congress, Dubai, UAE, 21 to 26 January 2006

Speaker - Robotic Surgery - Future of Surgery- 7th Asian Pacific Congress of Endoscopic Surgery, ELSA 2005, Hong Kong, 17 to 19 August 2005

Speaker -  Nerve-sparing Axillary Dissection Using the da Vinci Surgical System and Poster Presentation The Impact of the da Vinci Surgical System in General Surgery- Royal College of Surgeons Quincentenary Congress EICC, Edinburgh, 28 June to 1 July 2005.

Invited Speaker - General Surgery Procedures with the da Vinci Surgical System - 1st International Scientific Meeting of Indonesian Society of Surgical Oncology (ISSO), Borobudur, Jakarta , 25 to 27 March 2005

Invited Speaker - Advances in Laparoscopic Surgery - Surgery In The Future - Arab Health 2005, Dubai, UAE, 12 to 15 February 2005.