May 11 (Reuters) - Futures for Canada’s main stock index edged lower on Monday as U.S. President Donald Trump’s rejection of Iran’s response to a peace proposal left global markets worrying that the 10-week-old conflict will drag on.

June futures on the S&P/TSX index SXFcv1 were down 0.2% at 6:08 a.m. ET (1008 GMT).

• Days after the United States floated an offer in hopes of reopening negotiations, Iran released a response on Sunday that focused on ending the war on all fronts. Within hours, Trump dismissed Iran’s proposal in a post on Truth Social, saying "I don't like it — TOTALLY UNACCEPTABLE."

• Oil prices rallied on supply fears after the news, with the Strait of Hormuz remaining largely closed and global markets staying tight. O/R

• Spot gold XAU= fell 1.1% on elevated concerns that inflation could keep interest rates higher for longer. GOL/

• The Toronto Stock Exchange's S&P/TSX Composite Index .GSPTSE rose to a near three-week high on Friday as investors cheered recent growth in corporate earnings and after weaker-than-expected domestic jobs data tempered for interest rate hikes.

• On the earnings front, building materials distributor Doman's DBM.TO first-quarter revenue missed analyst expectations on Friday because of weak plywood demand.

• Gold miner Barrick Mining ABX.TO on Monday beat Wall Street estimates for first-quarter profit as higher gold prices offset lower production.

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