Mr. Carlos Manuel Marques Martins is an Executive Chairman at Martifer SGPS, a Chairman at Agromec Balaciu SA, a Chairman at Agrozootehnica Facaeni SA, a Chairman at Empresa de Perfuração e Desenvolvimento Mineiro SA, a Chairman at Estia SGPS, S.A., a Chairman at Estialiving SA, a Chairman at Eviva Beteiligungsverwaltungs GmbH, a Chairman at Gebox SA, a Chairman at I'm Mining SGPS SA, a Chairman at I'M SGPS SA, a Chairman at Martifer Aluminium PTY Ltd., a Chairman at Martifer Aluminium SAS, a Chairman at Martifer Amal SA, a Chairman at Martifer Beteiligungsverwaltungs GmbH, a Chairman at Martifer Construcciones Metalicas Espana SA, a Chairman at Martifer Energy Systems SGPS SA, a Chairman at Martifer Gestao de Investimentos SA, a Chairman at Martifer Global SGPS SA, a Chairman at Martimetal SpA, a Chairman at Miharox SA, a Chairman at Mondefin Combustiveis SA, a Chairman at Nagatel Viseu Promoção Imobiliária SA, a Chairman at Navalria - Docas, Construções e Reparações Navais SA, a Chairman at Nutre Brasil Ltda., a Chairman at Nutre Farming West Part SRL, a Chairman at Nutre SA, a Chairman at Nutre SGPS SA, a Chairman at Prio Advanced Fuels SA, a Chairman at Prio Advanced Fuels SGPS SA, a Chairman at Prio Agricultura Ialomita SRL, a Chairman at Prio Agricultura SA, a Chairman at Prio Agro Facaeni SRL, a Chairman at Prio Agro Industries Sp Zoo, a Chairman at Prio Agromart SRL.Mr. Marques Martins was previously employed as a Production Director-Iron Sector by Carvalho & Nogueira Lda., a Chairman by Martifer Alumínios SA, a Chairman by Martifer Construções Metalomecânicas SA, a Chairman by Nutre - Indústrias Alimentares SA, and a Chairman by Prio Energy SGPS SA.

He also served on the board at Finibanco Holding SGPS SA and Martifer Construction Ltd.

He received his undergraduate degree from Faculdade de Engenharia da Universidade do Porto.