SEOUL, South Korea — North Korea’s new envoy to nuclear talks with the United States on Friday welcomed the ouster of President Trump’s former National Security Adviser, John R. Bolton, and the president’s suggestion that Washington would use a “new method” in negotiating with the North.

The envoy, Kim Myong-gil, hailed Mr. Trump’s “wise political decision” to approach North Korea-United States relations “from a more practical point of view” now that “a nasty troublemaker” — an apparent reference to Mr. Bolton — was out.

The decision to seek a new method was “the manifestation of the political perception and disposition peculiar to President Trump, which no preceding U.S. chief executives even wanted to think of nor were able to do,” Mr. Kim said in a statement carried by the North’s official Korean Central News Agency on Friday.

Talks on how to end North Korea’s nuclear weapons program have stalled since the breakdown of Mr. Trump’s second summit meeting with the North Korean leader, Kim Jong-un, in Vietnam in February.