TEAM GB secured a second win in three round robin games at Sochi 2014.
A magnificent seventh end when Aileen Neilson's rink scored five shots propelled them to an 8-4 win.
With Moray curlers Gregor Ewan and Jim Gault in the line-up, the Brits eased into a 3-0 lead after three ends.
However, the Koreans found some form and stormed into a 4-3 lead with two ends remaining.
Some inspired shot-making and mistakes by the Koreans handed Team GB a remarkable five shots in the penultimate end to put them 8-4 ahead.
And when Gregor Ewan took out a Korean counting stone with just three stones remaining, the Korean skip conceded defeat.
It puts the British quartet in a strong position after three round robin games.
They play Slovakia on Monday at 7.30am British time as their quest for a medal continues.