In 2010, Kinvi was sent as a missionary to the
Central African Republic, where he became head of a Catholic mission in
Bossemptélé. The mission included a parish, a school, and a hospital, where he also served as administrator. During the
2013–2014 conflict, violence between predominantly Muslim
Seleka rebels and largely Christian
Anti-balaka militias led to widespread attacks on civilians. Kinvi became known for providing shelter, medical care, and protection to Muslim civilians who were being targeted. At the height of the violence in 2014, he sheltered more than 1,500 Muslim refugees within the mission compound. Despite threats from armed groups, he refused to hand over those under his protection. He also organized and personally accompanied evacuations of refugees to safer areas, including transport convoys to neighboring
Cameroon. In addition to civilians, he treated wounded individuals from all sides of the conflict, emphasizing neutrality and the equal dignity of all human life. ==Humanitarian work==