Feature: Producers of Greece's Kalamata olives seek to conquer China as next big market

Photo taken on April 1, 2021 shows Kalamata olive paste in Kalamata, Greece. Known as the "black queen" of all Greek olives, the Kalamata, grown in the sun-kissed olive groves around Messinia in the southwestern part of the Peloponnese and named after the capital city of the region, has been an integral part of the local gastronomy and economy for centuries. (Photo by Lefteris Partsalis/Xinhua)