United States president Donald Trump announced a series of reciprocal tariffs affecting over 180 countries.A 10% baseline tariff will be imposed on all countries beginning April 5 and 'worst offenders' will face individualised tariffs up to 50%.Key trading partners such as the European Union (20%), China (34%), Vietnam (46%), and Malaysia (24%) will be affected.China and Hong Kong will no longer enjoy duty-free de minimis treatment for imported goods from May 2.