I don't know when Korean Sales twitter ended counting for this list but I've quickly added aespa to the list taking into consideration their sales.
01. TWICE — 755,706
02. ITZY — 707,308
03. Red Velvet — 437,664
04. BLACKPINK — 359,050
05. Dreamcatcher — 257,687
06. STAYC — 237,047
07. (G)I_DLE — 213,641
08. aespa — 200,082
09. MAMAMOO — 198,030
10. OH MY GIRL — 153,175
11. LOONA — 144,468

