The human remains found Thursday in a ditch on Ronald Road in Coward, have been identified as Joel Daniel Poston, 57, according to Florence County Coroner Keith von Lutcken.
Poston had been missing since December 18, 2013, Lutcken said.
Lutcken is waiting on additional autopsy results before ruling on a cause of death.
The Florence County Sheriff's Office is investigating.
This is the third discovery of human remains in Florence County in the past six days.
Last week, the bodies of an elderly brother and sister were found at a home in the Effingham community. The cause of their deaths have not been determined.