Singapore investment firm Temasek Holdings has appointed three new board members as they continue to refresh their leadership team.

They are prominent property businessman Robert Ng Chee Song, former KPMG Singapore managing partner Bobby Chin Yoke Choong and ex-Royal Dutch Shell chief executive Peter Voser.

Mr Ng and Mr Chin will begin their term on Tuesday, while Mr Voser will take up his appointment on Jan 1 next year.

The new appointments will see the board enlarged from the current 10 to 13, said Temasek, which owns a $215 billion portfolio as at March 31 last year.

They join former cabinet minister Mr Lim Boon Heng, who was appointed Temasek chairman last August.

Said Mr Lim of the three new board members: "I am very pleased to welcome each of them to our Board. They are all experienced business builders and corporate leaders in regional and international arenas, who will add depth and useful perspectives to our Board deliberations."

The three new board members hail from different backgrounds, including property, energy and accountancy.

Mr Ng is chairman of several property companies including the Sino Group, Tsim Sha Tsui Properties and Sino Hotels. He also serves as vice-chairman of M+S Pte Ltd, the company spearheading the Singapore real estate joint-venture initiative between Khazanah Nasional Berhad and Temasek.

Mr Chin was the managing partner of KPMG Singapore from 1992 until his retirement in 2005. He is deputy chairman of NTUC Enterprise Co-Operative Limited and a board member of Singapore Labour Foundation and serves as a member of the Council of Presidential Advisers. He also sits on the boards of several listed companies including Yeo Hiap Seng, Sembcorp Industries and Singapore Telecommunications.

Mr Voser served as the CEO of Shell from 2009 to 2013 and is a board member of healthcare firm Roche.