Mumbai, July 12 -- COMEX Gold futures hit one-week high of $3370 per ounce as global trade concerns kept the metal supported. The counter added around 2.50% for the week. The US President Donald Trump announced a 35% tariff on Canadian imports and also talked about blanket tariffs of 15% to 20% on most of America's trading partners and announced plans to make a 'major statement' on Russia. This kicked in safe-haven demand for Gold and the metal rose despite the strength in the US dollar index. COMEX Silver futures spiked above $39 per barrel to hit around 14-year highs as sentiments stayed well supported for the metal despite a muted action in Gold and Copper. Broad demand trends are positive. The Silver Institute had noted at the start of ...