United Engineers

Norman Ip: Appointed as group managing director with effect from Dec 1. Mr Ip, 63, joined the board in December 2009. He is also chairman of the corporate office formed to oversee the integration of WBL Corporation into the group.

China New Town Development

Shi Jian: Removed as executive director and vice-chairman with effect from Dec 5. Mr Shi, 62, has been absent from board meetings for six consecutive months without special leave of absence.

ICP

Lee Miau Kheng: Resigned as chief financial officer with effect from Nov 30. Ms Lee, 42, left to pursue her personal interests.

Natural Cool Holdings

Chia Puay Hwee: Stepped down as executive director with effect from Nov 30. Mr Chia, 52, was the chief executive officer of the company's switchgear unit, which has been sold.

Rowsley

Lock Wai Han: Resigning as executive director and group chief executive officer with effect from Jan 1. Mr Lock, 48, is leaving to pursue his personal interests.

Chiang Chie Foo: Stepped down as chairman and non-executive non-independent director with effect from Dec 1. Mr Chiang, 59, has left to pursue his personal interests.

Chua Hwee Song: Stepping down as independent non-executive director with effect from Jan 1. Mr Chua, 48, is leaving to pursue his personal interests.

Wong Chiang Yin: Stepping down as non-executive non-independent director with effect from Jan 1. Dr Wong, 47, is leaving to pursue his personal interests.

Ng Ser Miang: Appointed as chairman and non-executive independent director with effect from Dec 1. Mr Ng, 66, was until last year chairman of NTUC FairPrice.

Chan Lay Hoon: Appointed as deputy chairman and non-executive non-independent director with effect from Dec 1. Ms Chan, 51, is the chairman of Valencia Football Club.

Ong Pang Liang: Appointed as independent director with effect from Jan 1. Mr Ong, 56, was the company's chief financial officer between 2008 and 2010.