State-owned Kogas sold 3.87 million mt last month, down 2.3 percent compared to 3.96 million mt in December 2024, the firm said in a stock exchange filing.
December sales were 28.4 percent higher compared to the previous month’s 3.02 million mt, which marked a rise of 13 percent on the year.
Purchases by power firms decreased 3.3 percent year-on-year to 1.30 million mt in December and were higher by 0.3 percent compared to the previous month.
Moreover, Kogas said its city gas sales dropped 1.7 percent year-on-year to 2.56 million mt in December. City gas sales were 49.8 percent higher compared to the previous month.
Kogas did not provide data for the entire year of 2025.
However, based on the company’s monthly reports, Kogas sold 34.51 million mt in 2025.
This is up by 1 percent compared to 34.19 million mt in 2024.
Kogas said in its third-quarter report that it sold 25.35 million mt in the first nine months of this year, almost flat compared with the previous year.
The company said its city gas sales rose by 3.9 percent as demand for civil use increased due to a sharp drop in temperature in February and April compared to previous years.
The firm also noted that demand for industrial and fuel cell use increased, leading to higher sales volume.
According to Kogas, power firm purchases decreased 4.2 percent due to economic downturn and a reduction in peak power generation following an increase in base-load generation.
Korean LNG imports up
Kogas operates 77 LNG storage tanks at five LNG import terminals in South Korea.
The large terminals include Incheon, Pyeongtaek, Tongyeong, and Samcheok, while the firm has a small-scale regasification terminal at the Aewol port on Jeju island as well.
In addition to these facilities, the firm is building a large terminal in the western port city of Dangjin.
Kogas expects to complete the first phase of the Dangjin LNG terminal in May 2027 and the second phase in December 2029, according to its quarterly report.
According to customs data, South Korean LNG terminals received 46.71 million mt of LNG in 2025, a rise compared to 46.31 million mt in 2024.
Australia was the biggest supplier to South Korea last year, with 14.67 million mt of LNG, followed by Malaysia with 7.51 million mt, and Qatar with 6.96 million mt, the data shows.
