The Catholic Church in North Korea is not part of the worldwide Catholic Church, and is not under the spiritual leadership of the Pope. It does not belong to the Latin (or Roman) Rite of the Catholic Church.
According to the KCA, there are 3000 catholics in the north. But these are the "experts" from the inside. Outside experts figure there is about 800. Christianity in North Korea is partly an underground movement, allegedly not receiving missionaries from southern China. However, the church is administered by the North Korean Catholic Association, created by the Communist government in June 1988 as a means of control over Catholic life. The remaining Catholic churches are inactive.
An invitation for the Korean Catholic Association to attend a Papal Mass in Seoul on 18 August 2014, during a 4-day visit to South Korea by Pope Francis, was declined by the association the reason is "unknown."