(FILES) In this file photo taken on July 6, 2017, seized elephant ivory tusks are displayed during a press conference at the Kwai Chung Customhouse Cargo Examination Compound in Hong Kong, following the city's largest seizure of ivory tusks in the last thirty years. Hong Kong voted to ban ivory sales in a landmark bill on January 31, 2018 to end the infamous trade in the city. / AFP / ANTHONY WALLACE