In 1966 the board of Koninklijke Hoogovens voted in favour of merging their IJmuiden steelworks with the Dortmund plant of German steelmaker Hoesch; Hoesch would benefit from the IJmuiden steelwork's port, and Koninklijke Hoogovens' 43% shareholding in the Dortmund-Hörder Hüttenunion (DHHU) was converted into a 15% shareholding in Hoesch with Hoesch acquiring DHUU. The two firms made agreements on division of work between the plants – IJmuiden was to concentrate on pig iron, crude steel, and semi-manufactured products, whilst Hoesch's Dortmund plant was to produce finished steels and manufactured products. The two entities were merged in 1972, forming Estel NV, headquarter in Nijmegen., via www.encyclopedia.com
