South Korean oil refiner S-Oil held the company’s annual charity event, dubbed “Sharing Songpyeon with S-Oil,” on Friday, for the upcoming Chuseok holiday. S-Oil CEO and some 100 employees made songpyeon traditional half-moon-shaped rice cakes served during Chuseok and 500 gift packages, spending 50 million won ($37,400) in total. “Korea’s Chuseok is a meaningful holiday that celeb.