By Kevin Buckland TOKYO (Reuters) -Wall Street futures sank and the safe-haven yen and Swiss franc strengthened early on Monday as building deflationary pressures in China added to growth worries from a fading U.

Commerce Secretary Howard Lutnick said Sunday that the Trump administration's threatened 25% tariffs on steel and aluminum imports will start Wednesday and tariffs on Canadian dairy and lumber products will go into effect on April 2.

T HE SELL-OFF shows no sign of stopping. America’s S & P 500 index dropped by another 3% on March 10th, leaving the world’s most watched stockmarket down by almost 9% since its peak last month. The NASDAQ, dominated by tech firms, has fallen by 13%. It is not quite the bold new era of American growth that President Donald Trump had in mind.

President Donald Trump is dismissing business concerns over the uncertainty caused by his planned tariffs on a range of American trading partners and the prospect of higher prices and isn’t ruling out

President Donald Trump’s tariffs have spooked investors, with fears of an economic downturn driving a stock market sell-off that has wiped out $4 trillion from the S&P 500’s peak last month, when Wall Street was cheering much of Trump's agenda.