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COMSA
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<p>COMSA Corporación is a Spanish global group focused on <a href="/facts/Infrastructure/QJvbsSpl">infrastructure</a> development, <a href="/facts/Industrial_engineering/TjInYQeC">industrial engineering</a> and services, whose main <a href="/facts/Business/For1e8Nh">business</a> historically has been <a href="/facts/Railway/9nJQbsDV">railway</a> infrastructure. The corporation is headquartered in <a href="/facts/Barcelona/8PWLdRbW">Barcelona</a>, <a href="/facts/Catalonia/p2KeGXbf">Catalonia</a>. </p>