Chirayu Isarangkun Na Ayuthaya

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Chirayu Isarangkun Na Ayuthaya
จิรายุ อิศรางกูร ณ อยุธยา

Lord Chamberlain of the Royal Household
Assumed office
23 September 2016
Monarch Bhumibol Adulyadej
Preceded by Keokhwan Vajarodaya
Director-General of the Crown Property
Assumed office
28 July 1987
Monarch Bhumibol Adulyadej
Preceded by Phunphoem Krairoek
Minister of Industry
In office
28 July 1985 – 5 August 1986
Monarch Bhumibol Adulyadej
Prime Minister Prem Tinsulanonda
Personal details
Born (1942-12-12) 12 December 1942 (age 74)
Bangkok, Thailand
Alma mater London School of Economics
Australian National University
Occupation politician, economist, court official
Religion Theravada Buddhism

Chirayu Isarangkun Na Ayuthaya (จิรายุ อิศรางกูร ณ อยุธยา, rtgsChirayu Itsarangkun Na Ayutthaya, Thai pronunciation: [t͡ɕìʔraːjúʔ ʔìtsàʔraːŋkuːn náʔ ʔàʔjúttʰáʔjaː]; born 12 November 1943) is a Thai economist and court official. He has been the Director-General of the Crown Property Bureau and Grand Chamberlain of the Bureau of the Royal Household since 1987. Chirayu is an avowed proponent of the "sufficiency economy" philosophy that is promoted by King Bhumibol Adulyadej.[1][2]

Background and education[edit]

Chirayu was born in Bangkok. The Isarangkun family is a distant side branch of the ruling Chakri Dynasty. The particle na Ayutthaya indicates this distant royal ancestry. Chirayu's father Charunphan Isarangkun Na Ayuthaya was a diplomat, foreign minister, and member of King Bhumibol's Privy Council. Chirayu visited Bangkok's prestigious all-boys Saint Gabriel's College, before moving to the King's College School in Wimbledon, London, where he acquired his A-levels in 1960. Subsequently, he studied economics at the London School of Economics, receiving an Honours degree in 1964. He took a doctoral degree from the Australian National University in 1971.


From 1976 to 1979, Chirayu was the dean of the faculty of economics of the government-run National Institute of Development Administration (NIDA). Chirayu became Minister of Industry under Prime Minister Prem Tinsulanonda in 1985, and Minister to the Office of Prime Minister one year later. After he had taken a stand for a controversial tantalum factory in Phuket Province that was burnt down by furious locals who were afraid of hazardous wastes, Chirayu was confronted with allegations of corruption, that could however not been proven.[3]

Later, King Bhumibol appointed him Director-General of the Crown Property Bureau (CPB), that is responsible for administering the immense royal assets. Moreover, the king appointed him as Grand Chamberlain of the Bureau of the Royal Household. He is member of the boards of directors of several companies in which the CPB is a principal shareholder. Since 1987 he has been President of the Board of Directors of Deves Insurance. During and after the Asian financial crisis, he was the President of the Board of Directors of Siam Cement — which is one of the biggest corporations of Thailand — from 1998 to 1999, and of Siam Commercial Bank — the country's second largest bank — from 1998 to 2007. Since 2007 he has again led the Board of Directors of Siam Cement.[4][5]

Moreover, he has been Chancellor of the Council of NIDA since 1998. He manages several foundations under the auspices of the royal family, including the Sai Jai Thai Foundation (for wounded and disabled veterans), the Royal Project Foundation, and the Queen's Foundation of the Promotion of Supplementary Occupations (for farmers).[6][7]

Further reading[edit]


  1. ^ Weena Noppakunthong (20 November 2007), "Clarifying sufficiency economy through education", Bangkok Post, retrieved 18 May 2014 
  2. ^ Achara Deboonme (6 July 2011), "Sufficiency economy taking firm roots", The Nation, retrieved 18 May 2014 
  3. ^ "Appointed: Chirayu Isarangkun na Ayuthaya", Asiaweek, 13, p. 291, 1987 
  4. ^ Corporate Profile: Board of Directors, Chirayu Isarangkun Na Ayuthaya, SCG Siam Cement Group, retrieved 18 May 2014 
  5. ^ Executive Profile: Chirayu Isarangkun Na Ayuthaya, Bloomberg Businessweek, retrieved 18 May 2014 
  6. ^ Executive Profile: Chirayu Isarangkun Na Ayuthaya, The Wall Street Journal, retrieved 18 May 2014 
  7. ^ Isarangkun Na Ayuthaya, Chirayu, Brief Biography, Reuters, retrieved 18 May 2014