H Mart mini on Tottenham Court road is 3 minute walk from my office and does resealable pouches of it various sizes plus all manner of JP and Chinese foods
from wiki "Large numbers of Koreans began to settle in the UK in the 1980s, mostly near London; the highest concentration can be found in the town of New Malden, where estimates of the Korean population range from 8,000 to as high as 20,000 people"
Gochujang is fucking awesome