It appears to be two separate meetings contemplated, they should consolidate it, if they do it, as they don’t want North Korea to split them off from each other which may be part of the aim.
Via Fox News:
South Korea is expected to announce Thursday night that North Korean dictator Kim Jong Un is extending an invitation to meet with President Trump, a senior U.S. official revealed to Fox News.
South Korean National Security Adviser Chung Eui-yong will also announce an upcoming meeting between South Korean president Moon Jae-in and the North Korean leader, Fox News has learned.
There currently are no plans to change U.S.-South Korea military exercises nor is there a commitment by Kim Jong Un to stop his nuclear testing.
Earlier Thursday, President Trump announced that South Korea would be making a “major statement” about North Korea at 7 p.m. Eastern time Thursday, Fox News confirmed.