From the Eizenstat Report:
"Spain and particularly Portugal provided Germany with invaluable supplies of wolfram (tungsten) required in the steel-hardening process. Spain also supplied iron, ore, mercury, and zinc."
"Negotiations with Spain regarding German assets and looted gold were protracted and yielded only a token amount. The Allies suspected that Spain held about $30 million in gold looted by the Nazis and another $30-39 million in other German assets. The Allies reached an agreement with Spain on looted gold through an exchange of notes in May 1948. In 1949, Spain turned over to the Tripartite Gold Commission $114,329 in looted gold.
An accord on the disposition of German assets in Spain was not reached until April 1948, by which time the U.S was seeking access to Spanish bases. Some of the proceeds from the liquidation of German assets (about $36 million) were distributed to IAPA nations, but none was slated for non-repatriable victims. In November1949, the Allies registered a protest over Spain's implementaton of the accord, and a year later Spain threatened to suspend it. The debate continued without resolution until 1958. As a result, there was not payment for German assets."
Portugal and Span have created historical commissions to review their wartime, including their relationship to Nazi Germany and the looting and disposition of valuables from Jewish and non-Jewish people.