Qatar's Rasgas has agreed to sell South Korea's state-run Korea Gas Corp (Kogas) an additional 2 million tonnes a year of liquefied natural gas (LNG) for the next 20 years, the two companies said in a statement.

Kogas, one of the world's biggest LNG buyers, already has contracts with Rasgas to receive a total of around 7 million tonnes a year until 2024-2026.

'This agreement is further evidence of these strong ties and helpful for long term security of LNG supply to Korea,' Kogas chief operating officer Young Sung Park said in a statement.-Reuters