HANOI, April 4 (Reuters) - U.S. President Donald Trump and Vietnam’s leader To Lam agreed on Friday to discuss a deal to remove tariffs, both leaders said after a phone call that Trump said was “very productive”, as Hanoi escalated its campaign to dodge duties of 46%.

Days before Trump’s announcement on reciprocal tariffs that hit Vietnam hard, the country had already cut several duties as part of a series of concessions to the U.S., which also included pledges to buy more American goods such as planes and agriculture products.