Mumbai, July 11 -- COMEX gold futures added to recent streak of gains to be currently quoting at $3345.40 an ounce, up over half a percent on the day. The yellow metal stayed supported amid uncertainty surrounding trade tensions. US President Donald Trump said on Thursday the United States would impose a 35% tariff on imports from Canada next month and planned to impose blanket tariffs of 15% or 20% on most other trade partners. Moreover, he emphasized earlier in the week that he would apply 10% additional tariffs to countries aligning themselves with anti-American policies of the BRICS. However, firmness in dollar limited gains in the precious commodity. Dollar regained momentum after US President Donald Trump announced new tariffs. Beside...