July 21 (Reuters) - Futures linked to Canada's main stock index edged higher on Tuesday as reports of mediation efforts in the Middle East conflict lifted sentiment, while investors assessed fresh U.S. tariffs on Canadian imports.

September futures tracking the resource-heavy S&P/TSX Composite Index were up 0.2% at 07:05 a.m. ET.

• U.S. President Donald Trump imposed 50% tariffs on a broad range of Canadian imports, citing what the administration described as Canada's discriminatory treatment of American-made vehicles, alcohol and dairy products

• Gold prices climbed more than 1% as investors assessed diplomatic efforts aimed at easing the Middle East conflict, which could temper oil-driven inflation risks and influence the U.S. Federal Reserve's interest rate path.GOL/

• Oil prices retreated from one-month highs, with Brent crude futures LCOc1 trading around $89.5 per barrel, while West Texas Intermediate Crude CLc1 traded around $84 a barrel.O/R

• Data released on Monday showed Canada's annual inflation rate eased to 2.8% in June from a 29-month high of 3.2% in May, largely due to a sharp decline in gasoline prices.

• Traders now largely expect the Bank of Canada to keep interest rates unchanged this year, as per LSEG data. The next policy meeting is due in September.

• In a separate development, Britain's new government is expected to invite Canada to join the delayed Global Combat Air Programme (GCAP) fighter-jet project, as European allies seek to reduce dependence on U.S. defence equipment and technology.

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