Mr. Kasseyev was born on August 14, 1967 in East-Kazakhstan oblast.
1998 – 2001, Director of Ust-Kamenogorsk Gas Management Administration, LLP, then Deputy Managing Director of Alautransgas, OJSC.
GENERAL DIRECTOR (CHAIRMAN OF THE MANAGEMENT BOARD) INTERGAS CENTRAL ASIA, JSC
Manas M.Tassybayev was born in 1962 in the Aktobe region.
Education: Almaty Institute of Railway Transport Engineers (1985), qualified Civil Engineer. Candidate of Technical Sciences.
Career started in 1979 with employment as a Mechanical Technician.
1985, construction Foreman, Aktobetransstroy trust.
1985-1987, regular military service in the armed forces of the Soviet Army, squad leader.
1987-1988, Foreman of the Aktobetransstroy Construction Trust.
1988-1991, Inspector, the People's Inspection Committee of Aktobe city.
1991, Instructor of the party commission for the organization and personnel work of the Aktobe City Party Committee.
1991-1992, Leading specialist, Chief Department for Labor and Employment of the Aktobe Regional Executive Committee.
1992-1994, assistant, adviser to the akim of Aktobe.
1994-1996, Deputy Head of the Department of Organization of Akim's Administration in Aktobe.
1996-1999, Head of the Administration Office, Deputy Akim of Aktobe.
1999-2002, First Deputy Akim of Aktobe. 2002-2006, Akim of Atyrau city.
2006-2008, Deputy Akim of Atyrau region. 2009, Managing Director of KazTransGas Aimak, JSC, for the Western Region.
2010 – 2016, Director of the Aktobe production branch of KazTransGas Aimak, JSC.
2016-2020, General Director of KazTransGas Aimak, JSC.
2021-2022, General Director of QazaqGaz Quryly, LLP.
April 2022 – present, General Director (Chairman of the Management Board) of Intergas Central Asia, JSC.
Awards: Awarded with the Kurmet Order for a valuable contribution to the development of the oil and gas industry, professionalism and impeccable work; Letter of Gratitude from the President of the Republic of Kazakhstan; Honorary Diploma of the Republic of Kazakhstan; the Medal "20 years of the Constitution of the Republic of Kazakhstan"; the Order of the Holy Right-Believing Вглу Daniel of Moscow (ROC), the Medal of the Industry Trade Union of the Oil and Gas Complex “Salalyk kәsipodakka sinirgen enbegi ushin” for High Results in Profession; the Medal "Ulttyk kauipsizdiktі kamtamasyz etudegі үlesі үshіn"; the Medal "Kazakhstan temir zholyna 100 zhyl" for 100 anniversary of the Kazakh Railways; medal "10 years of Astana"; Letter of Gratitude from the Department of the Agency of the Republic of Kazakhstan for Civil Service Affairs and Anti-Corruption in the Aktobe region.