July 14 (Reuters) - Futures linked to Canada's main

stock index fell on Monday, with the latest threat of U.S.

tariffs lowering investor risk appetite.

Futures on the S&P/TSX index were down 0.1% by

06:05 a.m. ET (1005 GMT).

U.S. President Donald Trump on Saturday announced a 30%

tariff on most imports from the EU and Mexico starting August 1,

despite ongoing trade negotiations.

Trump had issued a letter late on Thursday implementing a

35% tariff rate on Canada, adding that the rate would go up if

Canada retaliated.

Exclusion for goods covered by the United

States-Mexico-Canada Agreement (USMCA) on trade are expected to

stay, while the 10% tariffs on energy and fertilizer are also

not set to change.

The letter had complained about the flow of fentanyl from

Canada and that the country's tariff and non-tariff trade

barriers hurt U.S. dairy farmers. Trump also referred to the

trade deficit with Canada as a threat to U.S. economy and

national security.

Gold prices gained to a three-week high on safe-haven

demand, while silver hit a more than 13-year peak. Oil

prices rose to a three-week high.

Toronto's benchmark S&P/TSX composite index ended

last week barely changed, after dropping on Friday with the

proposed tariffs on Canadian goods weighing on sentiment and

domestic jobs data clipping expectations of a Central Bank rate

cut.

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