Roesler said he was also disappointed that some German companies which had previously done business with Greece had still not been paid.
"The Greek side said during my visit that it would soon resolve the old cases,» he said. «Unfortunately there has been hardly any progress on this."
Germany has a big stake in the debt-stricken Greek economy. Athens has been one of the biggest buyers of German armaments over the past decade and German companies manage some of Greece's largest firms, including Athens International Airport, managed by engineering firm Hochtief.
Greece's cash-strapped hospitals owe dozens of millions of euros in arrears to German drugmakers and health equipment providers, such as Bayer.
