CIMIC Group Limited appointed Ángel Muriel as an Alternate Director for Peter Sassenfeld and Adolfo Valderas as an Alternate Director for Pedro López Jiménez. Adolfo Valderasheld roles as CIMIC Group Deputy Chief Executive Officer and Chief Operating Officer. He was Chairman and Chief Executive Officer of Iridium Concesiones de Infraestructuras. Iridium, an ACS Group company, is the worldleading developer and manager of government concessions involving transport and public works infrastructure. Ángel Muriel was the Head of Corporate Mergers and Acquisitions at HOCHTIEF Aktiengesellschaft.