Denis-Christel Sassou Nguesso is a Congolese politician. He is the son of President of Congo-Brazzaville Denis Sassou Nguesso. Denis Christel was administrator-general of Cotrade and was subsequently appointed deputy director-general of the National Petroleum Company of the Congo (Société nationale des pétroles du Congo, SNPC) in December 2010. He was elected to the National Assembly of Congo-Brazzaville in 2012.
Denis-Christel Sassou Nguesso attended the Général-Leclerc military preparatory school in Brazzaville and subsequently studied in France. Beginning in 2001, he headed the SNPC's branch in the United Kingdom. Subsequently he was administrator-general of Cotrade, a Congolese state company responsible for marketing oil, from 2005 to 2009. As part of an administrative shake-up at the SNPC, Sassou Nguesso was instead appointed as deputy director-general of the SNPC, in charge of the downstream operations, on 29 December 2010. The shake-up was viewed as indicative of his "increasing influence".
Beginning in 2005, Sassou Nguesso headed the Pole of Young Republicans (PJR), a political association that elected eight of its members to the National Assembly as independent candidates in the 2007 parliamentary election. He served as the PJR's honorary president until he was elected as its national executive president on 12 October 2007. The group was later renamed the Party for Justice and the Republic. At the Sixth Extraordinary Congress of the Congolese Labour Party (PCT), held in July 2011, Sassou Nguesso was elected to the PCT's 51-member Political Bureau. 10 PJR members, including Sassou Nguesso, were included in the PCT Central Committee. Sassou Nguesso then dissolved the PJR on 5 August 2011, while calling on all its members to immediately join the PCT.