Prime Minister Dinesh Gunawardena, who is on a two-day official visit to South Korea, today (03) toured SK Biotech research institute, a global institutional partner in vaccination and biotech research in the country. A group including State Minister Piyal Nishantha, Anupa Pasqual, MPs Yadamini Gunawardena, Rajika Wickramasinghe, Muditha de Soysa, Jagath Kumara, Secretary to the Prime Minister Anura Dissanayake participated in this event