Greek olive oil producer Konstantinos Papadopoulos wasted little time when the threat of U.S. tariffs was floated by U.S. President Donald Trump in the spring. He immediately started looking for alternative buyers around the world.Within weeks, his four generations of a family-run company had found a new buyer in Brazil, where Portuguese olive oil typically dominates. His first shipment of 15,000 bottles is expected to arrive in the port of Itapoa in two weeks.When Reuters visited his farm on Friday, Papadopoulos was close to sealing a separate deal with a new customer in Australia.