The state-run utility Korea Electric Power Corp. said Friday its operating loss more than quintupled on-year to hit a record high last year due to higher fuel costs and limited electricity rate hikes.

Its operating loss came to 32.63 trillion won ($25.02 billion) in 2022, compared with 5.85 trillion won a year earlier, the company said in a regulatory filing.

It is the largest ever yearly figure the company has logged so far, and the previous record was set in 2021.

Sales grew 17.5 percent on-year to 71.27 trillion won on larger demand.

But the company suffered losses due to soaring global fuel prices, while it was forced to cap electricity rates amid the government's efforts to curb high consumer prices and inflation.

Global liquefied natural gas prices more than doubled on-year to 1,564.8 won per ton last year, and the price of soft coal also spiked to $359 per ton in 2022 from $139.1 a year earlier, according to government data.

In the fourth quarter alone, operating loss stood at 10.77 trillion won, also an all-time high, the company said.

Last year, KEPCO hiked electricity rates three times, and raised the rates for the first quarter of this year.

In the wake of snowballing losses, KEPCO has been implementing a series of self-rescue measures, including the restructuring of overseas businesses, property sales and other cost-cutting moves worth a combined 14.3 trillion won over the next five years. (Yonhap)