The fourth meeting of the G20 heads of state/government, to discuss the global financial system and the world economy, took place at the Metro Toronto Convention Centre in Toronto, Ontario, Canada, on 26–27 June 2010. The summit's priorities included evaluating the progress of financial reform, developing sustainable stimulus measures, debating global bank tax, and promoting open markets. Alongside the twenty-one representatives of the G20 major economies, leaders of six invited nations, and eight additional intergovernmental organizations also took part in the summit.