data koreaKorea joined the OECD in 1996, becoming the Organisation’s 29th member country and its fifth from the Asia-Pacific region. it is one of 38 OECD Members. ... Key data and interactiveKorea joined the OECD in 1996, becoming the Organisation’s 29th member country and its fifth from the Asia-Pacific region. it is one of 38 OECD Members. ... Key data and interactive