* Kim says committed to complete denuclearization
* U.S. should match N.Korea's steps for talks to progress
* Possible weapons production halt suggested for first time (Adds Trump tweet in paragraph 7)
By Hyonhee Shin and Soyoung Kim
SEOUL, Jan 1 (Reuters) - North Korean leader Kim Jong Un said on Tuesday he is ready to meet U.S. President Donald Trump again anytime to achieve their common goal of denuclearizing the Korean Peninsula, but warned he may have to take an alternative path if U.S. sanctions and pressure against the country continued.
In a nationally televised New Year address, Kim said denuclearization was his "firm will" and North Korea had "declared at home and abroad that we would neither make and test nuclear weapons any longer nor use and proliferate them."
Kim added that Pyongyang had "taken various practical measures" and if Washington responded "with trustworthy measures and corresponding practical actions ... bilateral relations will develop wonderfully at a fast pace."
"I am always ready to sit together with the U.S. president anytime in the future, and will work hard to produce results welcomed by the international community without fail," Kim said.
However, he warned that North Korea might be "compelled to explore a new path" to defend its sovereignty if the United States "seeks to force something upon us unilaterally ... and remains unchanged in its sanctions and pressure.”
It was not clear what Kim meant by "a new path," but his comments are likely to further fuel scepticism over whether North Korea intends to give up a nuclear weapons program that it has long considered essential to its security.
In response to the news, Trump wrote on Twitter, "I also look forward to meeting with Chairman Kim who realizes so well that North Korea possesses great economic potential!"
There was no immediate comment from the White House. Asked for a reaction, a U.S. State Department official said: "We decline the opportunity to comment."
South Korea's presidential office, however, welcomed Kim's speech, saying it carried his "firm will" to advance relations with Seoul and Washington.
Kim and Trump vowed to work towards denuclearization and build "lasting and stable" peace at their landmark summit in Singapore in June, but little progress has been made since.
Trump has said a second summit with Kim is likely in January or February, though he wrote on Twitter last month that he was "in no hurry."
U.S. Secretary of State Mike Pompeo made several trips to Pyongyang last year but the two sides have yet to reschedule a meeting between him and senior North Korean official Kim Yong Chol after an abrupt cancellation in November.