Education

• C final exam (1969), M.G.P. (Physical General mathematics - 1970)
• S.P.C.N. (Sciences, Physical, Natural Chemistry), Master es Sciences (1973)
• C.N.A.M. (General mathematics - 1982) in France
• AFPA of analysis Programming and Teleprocessing (1982) in France
• Engineer Conceptor (Cap Gemini)

Politics

• President of the UPAKAF (Union of Patriots of the Kampuchea in France) in 1979
• Founding member of the Cofederation of the Khmers Nationalists with Norodom Sihanouk
  Norodom Sihanouk
  Norodom Sihanouk regular script was the King of Cambodia from 1941 to 1955 and again from 1993 until his semi-retirement and voluntary abdication on 7 October 2004 in favor of his son, the current King Norodom Sihamoni...
  
   in 1979
• Founding member of the FUNCINPEC
  Funcinpec
  FUNCINPEC is a royalist political party in Cambodia. Before the 2008 election, FUNCINPEC and the Cambodian People's Party formed a coalition government, although FUNCINPEC's significance has decreased steadily since 1998, when it had an equal relationship with the CPP in the coalition.FUNCINPEC is...
  
   in 1981 with Norodom Sihanouk
  Norodom Sihanouk
  Norodom Sihanouk regular script was the King of Cambodia from 1941 to 1955 and again from 1993 until his semi-retirement and voluntary abdication on 7 October 2004 in favor of his son, the current King Norodom Sihamoni...
  
  
• President Director of the FUNCINPEC
  Funcinpec
  FUNCINPEC is a royalist political party in Cambodia. Before the 2008 election, FUNCINPEC and the Cambodian People's Party formed a coalition government, although FUNCINPEC's significance has decreased steadily since 1998, when it had an equal relationship with the CPP in the coalition.FUNCINPEC is...
  
   Television (Channel 9) in 1992
• Vice Minister of Relations with the Parliament of the G.N.P. in 1993
• Advisor of the Prime Minister the Prince Norodom Ranariddh
  Norodom Ranariddh
  Prince Norodom Ranariddh is the second son of former king Norodom Sihanouk of Cambodia and a half brother of the current king, Norodom Sihamoni.-Biography:...
  
   from 1993 to 1994
• Honorary member of the Royal Cabinet with rank of Minister since the 28 January 1994
• Under Secretary of State of the Trade Ministry of Cambodia
  Cambodia
  Cambodia , officially known as the Kingdom of Cambodia, is a country located in the southern portion of the Indochina Peninsula in Southeast Asia...
  
   from 1994 to 1995
• Delegation Chief of Cambodia at United Nation Conference about Trade and Development
• Secretary General of the Khmer National Party (renamed to Sam Rainsy Party
  Sam Rainsy Party
  The Sam Rainsy Party is a personalist and more or less liberal party in Cambodia. The party is a member of the Council of Asian Liberals and Democrats...
  
  ) Cambodia from 1995 to 1997
• President of the Khmer Unity Party
  Khmer Unity Party
  The Alliance of the National Community that represented four parties had all of its four parties merge together and be transformed into a political party called the Sangkum Jatiniyum Front Party and one of them is the Khmer Unity Party.The Khmer Unity Party, is an Cambodian opposition party...
  
   (KUP) from 23 October 1997 to June 2006
• Vice Deleguate General of the Sangkum Jatiniyum Front Party of Prince Sisowath Thomico from July 2006 to September 2007
• President Adviser of Sam Rainsy
  Sam Rainsy
  Sam Rainsy is a Cambodian politician.Sam Rainsy was born in Phnom Penh, son of Sam Sary, a member of Cambodia's government for a time in the 1950s. He moved to France in 1965, studied there and then worked in a variety of Parisian financial companies...
  
   Party from October 2007 to January 2008
• President Adviser of FUNCINPEC
  Funcinpec
  FUNCINPEC is a royalist political party in Cambodia. Before the 2008 election, FUNCINPEC and the Cambodian People's Party formed a coalition government, although FUNCINPEC's significance has decreased steadily since 1998, when it had an equal relationship with the CPP in the coalition.FUNCINPEC is...
  
  , Vice-President of Kampong Cham Province and President of Stung Trâng (Kampong Cham Province) since February 2008