Design Studio

Board of Directors

Tan Siok Chin

Tan Siok Chin

Non-Executive Chairman

Ms Tan Siok Chin was appointed as an Independent Director of our Company on 1 January 2006 and on 1 June 2012, she was appointed as the Non-Executive Chairman of the Board. Ms Tan practices as an advocate and solicitor in Singapore. She is a Director of ACIES Law Corporation, a firm of advocates and solicitors

Ms Tan has over two decades of experience in legal practice. Her main areas of practice are corporate finance, mergers and acquisitions, capital markets and

Ms Tan is also an independent director of several other public companies listed on the SGX-ST. Ms Tan graduated from the National University of Singapore with a Bachelor of Law (Honours) degree.

Edgar Ramani

Edgar Ramani

Director and Chief Executive Officer

Edgar Ramani was appointed as the Chief Executive Officer of Design Studio Group on 22 February 2017. He is responsible for the Group's overall strategic direction, growth, business development and operations for the Group.

He is a civil engineer with extensive experience in delivering turnkey resource and infrastructure projects throughout Australia, South East Asia, India and the Middle East.

Prior to joining Design Studio, he was the Chief Executive, Asia of UGL Limited. He was responsible for leading UGL's business in the Asian region. Before that, he was a Project Director at Leighton Asia (CIMIC Group) managing large scale projects across a number of countries. He was responsible for managing Leighton's first offshore oil & gas projects in Saudi Arabia, Australia and Singapore for Saudi Water and Electric Company, Apache and Shell respectively. He also managed the start-up of one of Asia's longest road tunnel EPC projects in the Himalayan region of Northern India.

Edgar commenced his career with Rinker Group in Brisbane and later with Clough Engineering in Australia and Indonesia.

Edgar holds a Bachelor of Civil Engineering (Hons) from the University of Queensland and an MBA from the University of Manchester. He is a member of the College of Civil Engineers Australia.

Kelly Ng Chai Choey

Kelly Ng Chai Choey

Executive Director

Ms Kelly Ng Chai Choey was appointed as Executive Director on 15 September 2008. She is responsible for the Group's financial and corporate functions, including treasury, tax, risk management, corporate communications and investor relations. In addition, she is assisting the Chief Executive Officer in overseeing the Group's business operation.

Ms Ng has more than 24 years working experience in tax, finance and accounting field with big four accounting firm and various companies in construction, pulp & paper and shipping industries. She is a fellow member of the Institute of Singapore Chartered Accountants and Association of Chartered Certified Accountants. She is also a member of the Singapore Institute of Directors. 

Ong Tiew Siam

Ong Tiew Siam

Independent Director

Mr Ong Tiew Siam was appointed as our Independent Director on 1 March 2007. He has more than 36 years of experience in finance and administrations.

Mr Ong graduated with a Bachelor of Commerce (Accountancy) (Honours) degree in 1975 from the Nanyang University, Singapore and is a fellow member of the Institute of Singapore Chartered Accountants. He is also a member of the Singapore Institute of Directors. Mr Ong also sits on the board of several listed companies. 

Roderick Maciver

Roderick Maciver

Non-Executive Director

Mr Roderick David Maciver was appointed as a Non-Executive Director of our Company on 9 November 2015. Mr Maciver is Depa Limited's Vice Chairman.

Mr Maciver has over 36 years of experience in the construction industry in the Middle East, including periods as a Managing Director for Wimpey International and Managing Director, Operations for both Tarmac International and more recently Carillion International. Since retiring from full time employment in 2006, Mr Maciver has worked as an adviser to various companies, for the past six years, majorly to Consolidated Contractors Company (CCC) and Al-Futtaim Group Real Estate.

Mr Maciver holds an HNC in Building (Structural Engineering Stream). 

Hamish Gordon Tyrwhitt

Hamish Gordon Tyrwhitt

Non-Executive Director

Mr Hamish Tyrwhitt was appointed as a Non-Executive Director of our Company on 29 June 2016. Mr Tyrwhitt is Depa Limited's Group Chief Executive Officer.

Mr Tyrwhitt has three decades of senior leadership experience in the global engineering and construction sectors. Most recently, he was CEO of Australian Securities Exchange-listed Leighton Group, now known as CIMIC Group, where he oversaw all subsidiaries operating across 23 international markets.

In his previous role, Mr Tyrwhitt supervised the delivery of numerous multi-million dollar projects and as Managing Director for Leighton Asia, he ran the business across all of Asia based from their headquarters in Hong Kong.

Mr Tyrwhitt holds a bachelor's degree in engineering from The University of Western Australia.