Chong Chul Sim is listed as a 45-year-old Asian man who vanished in connection with Los Angeles, with his official date of last contact recorded as February 28, 2020. He is described as about 5 feet 6 inches tall, roughly 140 pounds, with black hair and brown eyes.

Chong’s family last saw him in Los Angeles in 2013, and there are no documented in-person sightings by loved ones between then and the DMV transaction in 2020 that serves as the next verified marker of his activity. His case was added to the National Missing and Unidentified Persons System in October 2025 and is listed as published and unresolved; the Los Angeles Police Department’s Adult Missing Persons Unit is the investigating agency.

What remains unclear is why there was such a long gap before an official missing report and what Chong’s circumstances were between 2013 and 2020. Anyone who knew Chong, his routines, or last whereabouts is asked to contact the Los Angeles Police Department’s Adult Missing Persons Unit. Would anyone with information about Chong or his activities in Los Angeles between 2013 and 2020 come forward?