shall before attaining the age of 21, expressly renounce the nationality of any non-Member State of the Community which he may possess. ARTICLE 2 Loss, Forfeiture and Withdrawal of Community Citizenship 1. 2. Any person may lose Community Citizenship for the following reasons: (a) permanent settlement in a State outside the Community; (b) voluntary acquisition of the nationality of State outside the Community; (c) a de facto acquisition of the nationality of a State outside the Community; (d) loss of one's nationality of country of origin; (e) on his express request. Any naturalised person who has acquired the status of Community citizen may forfeit this citizenship for the following reasons: (a) if he involves in activities incompatible with the status of Community citizen, and or prejudicial to the fundamental interests of one or more Member States of the Community. (b) if he has been sentenced in any State of the Community for an act considered to be a crime and recognised as such within the Community. The situation is the same when such a crime is committed against a citizen of the Community. 3. Community citizenship may be withdrawn from a person for the following reasons: (a) when it becomes evident after the acquisition of the citizenship, that the person concerned did not satisfy the requisite conditions for the acquisition of Community citizenship; (b) if Community citizenship was obtained through lies or fraud. ARTICLE 3 On Re-Integration Re-intergration of Community Citizenship is granted after enquiry.