”SEVENTEEN” unit ”BSS” 2nd single exceeds 520,000 copies in initial sales

Idol group SEVENTEEN's special unit BSS (Seungkwan, DO-GYEOM, Hoshi) has demonstrated their immense popularity.
According to the album sales tally site Hanteo Chart on the 15th, BSS' second single "TELEPARTY" was released.
In the first week of sales (collection period: January 8-14), 529,936 copies were sold. This is an unusual initial sales volume for a K-POP unit album (sales volume in the first week after release).
It achieved a half-million seller record and went straight to number one on the Hanteo Chart's weekly album chart (collection period: January 6th to January 12th).