CHUNGDAHM Learning | 6,287 followers on LinkedIn. Learning and Beyond | CHUNGDAHM Learning is a market leader in the Korean ESL industry. Established in 1998, our mission was to revolutionize the how ESL was taught throughout the nation by providing the highest quality programs, instructors, researchers, and staff. Since conception we strive to push the limits of innovation in the classroom, providing our students with a rich and dynamic environment to develop their cognitive language potential.