Annual session is a principal annual activity of the Institute of Chemistry Ceylon which is conducted during the month of June and enables members to present their research papers at technical sessions. The Annual Session commences with a formal Ceremonial Inauguration, during which the outgoing President delivers a Presidential Address and the Annual Awards of the Institute are presented. The Annual General Meeting of the Institute, at which the Council for the next year is elected, is also held after the Ceremonial Inauguration. Awardees Addresses and Memorial Lectures are also delivered during the Annual Session. Each Annual Session usually has a Theme designated by the President. A Theme Seminar based on a particular theme is usually conducted to emphasize the areas covered.