SEOUL (Reuters) -South Korea's Industry Minister Kim Jung-kwan said on Wednesday that Seoul needs to hold further discussions with Washington on the timing of the promised tariff cuts on the country's car exports to the U.S. from the current level of 25%. President Donald Trump said last week the U.S. will charge a 15% tariff on imports from South Korea, including autos, as part of a deal that eases tensions with a top-10 trading partner and key Asian ally. The 15% U.S. tariffs on most items coming from South Korea are due to take effect starting from Thursday.