The deal is going to be signed by the two sides in Tehran in coming days, ISNA reports.
Nasser Riyahi, Head of Iran's Drug Importing Union said in case the refinery is launched, Iran would turn out to be a hub in the Middle East and eastern Mediterranean in this field.
He noted that the German firm is one of the world’s leading companies in plasma drugs.
The refinery would be co-financed by an Iranian company and German biotest, he said, adding that the deal worth $200 million.
Riyahi said that Iran is now importing blood plasma drugs and pays 150-160 million euros annually to import the drugs.
He noted that launching the refinery would also help the country save currency.