Brief: Qben Infra Names Fredrik Arpe Interim CEO
April 29 (Reuters) - Qben Infra AB QBEN.ST: APPOINTS FREDRIK ARPE AS INTERIM CEO Source text: ID:nMFN1phZwG Further company coverage: QBEN.ST (Gdansk Newsroom) ((gdansk.newsroom@thomsonreuters.com; +48 58 7696600;))