The body of Gwak Nho Hak, 53, was found in Barangay Kaytitinga and was later identified by his brother, Wan, and live-in partner Shirley Inobio at a funeral parlor in Alfonso town.
Gwaks body bore no signs of bullet or stab wounds, and an autopsy would have to be conducted to determine the cause of his death, police said.
Gwak, an executive at the BK Electronics company operating at the special export processing zone (SEPZ) in Rosario town, was last seen by Inobio last Friday after he dropped her off before going to meet unidentified Korean friends in Trece Martires City.
YB Lee, president of the Korean association at the Rosario SEPZ, and Inobio reported Gwaks disappearance to the authorities.
Gwaks green Honda Civic was found abandoned with its rear passenger window shattered in Barangay Cabuco in Trece Martires. His body was discovered later.
Police said they have no immediate suspects or motive for the killing.
Gwak had reportedly been in the country for eight years. With Arnell Ozaeta, Ed Amoroso and wire reports