What company does this singer-songwriter and record producer who worked with this South Korean boy group whose name describes its concept of having multi-sub units based in various cities worldwide?
Yoo Young-jin: Yoo Young-jin (Hangul: 유영진; Hanja: 劉英振) is a singer-songwriter and record producer for various S.M. Entertainment artists. Yoo Young-jin:  He has produced and written songs for H.O.T., S.E.S, BoA, Shinhwa, TVXQ, The Grace, Super Junior, Girls' Generation, Shinee, f(x), EXO, Red Velvet, and NCT. NCT (band):  Their name stands for the Hallyu localization project Neo Culture Technology, a term coined by S.M. Entertainment founder Lee Soo-man to describe the group's concept of having an unlimited number of members divided into multiple sub-units based in various cities worldwide.
i don't know