On 1 January 1986, the Treaty of Accession of Spain to the European Communities enters into force.
In 1988, the total sales of the cooperatives of the Corporation exceed €1.2 billion for the first time, and exports exceed €240 million.
The Ideko Research and Development Centre is formed. Danobat and Soraluce jointly obtain the largest export order in the machine-tool sector.
In 1990, Fagor Arrasate obtain the largest order in a history of the machine-tool sector, more than €20 million for Volkswagen and Seat.
