TEHRAN (ISNA)- Greek Foreign Minister Nikos Kotzias would visit Iran on Saturday. He is officially invited by his Iranian counterpart Mohammad-Javad Zarif. His trip is a follow up to Zarifs travel to Greece on May 28. The two sides plan to discuss issues of mutual interests as well as expanding economic cooperation. Greece was one of Iranian crude buyers before sanctions and it is now willing to buy Irans crude as well. By ISNA