South Korea will raise electricity prices for the first quarter of 2023 by 13.1 won per kilowatt-hour, a 9.5% increase that is the highest in four decades, its energy minister said on Friday, after a year of surging global energy prices. The amount of increase for the second quarter and beyond will be decided after reviewing trends in global energy prices, domestic inflation conditions and financial standings of public enterprises, Minister Lee Chang-yang said.