Researchers have identified a covert North Korean ballistic missile base that has never been disclosed by the Kim Jong Un regime, says a new report published days after the White House announced that President Trump and North Korean leader Kim will meet in February.

According to a report from Beyond Parallel, a project sponsored by the Center for Strategic and International Studies, the Sino-ri Missile Operating Base is just one of up to 20 missile sites that the rogue regime has kept hidden. The site is also the headquarters for the Korean People’s Army Strategic Rocket Forces missile brigade and has been critical in forming ballistic missiles that can reach as far as Japan and Guam.

Victor Cha, an author of the report, said that it appeared the North Koreans were planning to maintain “operational capability” even if their disclosed nuclear facilities are shut down.

"The North Koreans are not going to negotiate over things they don’t disclose," Cha said. "It looks like they’re playing a game.”

White House press secretary Sarah Sanders announced Friday that Trump will meet again with Kim in February, reportedly in Vietnam. Last year, in June, Trump and Kim met for the first time in Singapore and agreed to “work toward complete denuclearization of the Korean peninsula."

“President Donald J. Trump met with Kim Yong Chol for an hour and half, to discuss denuclearization and a second summit, which will take place near the end of February,” Sanders said in a statement. “The President looks forward to meeting with Chairman Kim at a place to be announced at a later date.”

National security adviser John Bolton accused the regime last month of not abiding by the commitments made when Trump and Kim met.