Answer
The Good News Mission is a ministry in Seoul, South Korea, that began as a missionary school in the late 1960s. It continues to train and send missionaries and pastors; currently, they have 600 missionaries, half of which are serving overseas in areas other than Korea. The Good News Mission also hosts conferences and operates broadcast facilities, camps, the Mahanaim Cyber College, and a youth intervention ministry called the International Youth Fellowship (IYF). The ministry has been led by Pastor Ock Soo Park since 1972.
The Good News Mission is Trinitarian, Reformed, and appears to teach salvation by grace through faith in Jesus Christ. And, as a mission, it naturally places a strong emphasis on evangelism and reaching the lost.
Several controversies surround the Good News Mission. Some people, including some pastors, have left the group and believe it to be a cult. Some also complain that Pastor Ock Soo Park has too much control over the organization. The Good News Mission vigorously denies these accusations.
As with any organization, we should compare the doctrine and practices of the Good News Mission with what the Bible says. Anyone considering joining the Good News Mission should do a thorough investigation, including asking the Good News Mission for their viewpoint on any concerns: https://www.gnmusa.org/.