South Korea's conservative BJP has selected former Labor Minister Kim Moon-SOO as a candidate for the June 3 presidential election, calling after he was removed from office for his attempt to impose martial law.

King will face Liberal Democratic candidate Lee Jae-Myung, who led every announced conservative candidate with a large double-digit margin in the poll.

Kim, 73, a college-age labor activist but later became a staunch conservative, served as Yeon Won's labor minister and promised that he would have committed to a business-friendly policy if elected.

In his acceptance speech, he presented the country with a general conservative vision, vowing to take a tough approach to North Korea and implement incentives for businesses as well as innovation and science.

He also pledged to strengthen policies to support young workers and vulnerable groups, narrating his experience as a labor and democratic activist, for which he was imprisoned and deported from school.

"I never gave up the weakest of us at the lowest point," he said.

But he added that the party must prove that the party is starting to win voters after public opposition to Yoon Woo's martial arts attempts.

The Conservatives lag behind in public support for liberals, although they have closed the gap since the martial law was announced in early December.

Kim remains one of the few people in the party who say Yun-won's dismissal.

Liberal candidate Lee remains a clear leader, according to a survey of pollster salespeople released on Monday, nearly 50% of the public support, while King has 13% support.

But a ruling this week shocked the game, which qualified Lee to run for the presidency, overturned the lower court’s acquittal, which allowed him to clear out violations of election laws in the last game. The Supreme Court sent the case back to the Court of Appeal, and it is not clear when a new ruling will be proposed.

On Friday, Yun's former Prime Minister Han Duck-soo announced his participation in the presidential election in a bid to capitalize on his higher visibility. Although not a member of the Conservative Party, Han has been called a potential partner of the party that opposes liberals in the presidential campaign.

The Constitutional Court's removal from the presidential office in April triggered the election, which ruled that he declared martial law on December 3, violated his duties and had no reasonable reason.