The Instituto Superior de Agronomia (ISA), School of Agriculture, organised 25-26 February an interregional workshop about cork oak provenance trials in the Mediterranean basin, that was carried out at Lisbon (Portugal). In this 2-day meeting was also presented the first results of the cork oak provenance trials network. First day was devoted to presentations about the trials and the respective first results and the discussion on the follow-up of the trials and the second day was be a field trip to the Provenance/progeny trial at Monte Fava.