YAB Dato' Seri DiRaja Mohamad Tajol Rosli bin Ghazali was appointed the Chairman of PAAB on 1 April 2009. He was formerly the Chief Minister of the State of Perak and had also held various portfolios in the Government namely as Parliamentary Secretary of Rural Development in 1983, as Deputy Minister National and Rural Development in 1986, as Deputy Minister of Energy, Telecommunications and Post in 1990, as Deputy Minister of Housing and Local Government in 1995, as Deputy Minister of Home Affairs in 1997 and as Minister in the Prime Minister's Department in January 1999. Dato' Seri DiRaja has been an assemblyman since he was first elected in 1977 and was a member of Parliament from 1978 to 1999.
Apart from his extensive contribution to the public administration, Dato' Seri DiRaja has also played a very active role in the development and activities of youth, within Malaysia and the Asian region. He was the President of the Malaysian Youth Council and the Secretary General of the Working Committee for ASEAN Youth Council from 1982 to 1986. From 1988 to 1991 he was the President of the Asian Youth Council.
Besides his career in the public sector, Dato’ Seri DiRaja has over the last 15 years also served in various capacities in the private sector. Among positions held were Director of Applied Management Consultant Sdn Bhd, an IT consultancy company and Managing Director of Rosli, Gan & Co., which specialized in outsourcing of accounting and company secretarial services. Dato’ Seri DiRaja is currently the Chairman of Integrax Berhad and was appointed to the Board on 21 June 2011.