The Purine and Pyrimidine Society organises a Symposium every two years. The last was held in Gdansk, Poland in September 2017, organised by Tom Smolenski. The next meeting will be held in 2019 in Lyon, France, and will be organized by.Lars-Peter Jordheim.

Members who have paid their subscription (see Membership form) will pay a reduced registration fee for the Symposium.