The Fifth Assembly of the ISA has approved a voluntary contribution mechanism under which Member Countries are invited to contribute to ensure the financial sustainability of the ISA. The ISA Assembly has approved contribution levels as specified below, however the mechanism has not yet been institutionalised
- USD 50,000 for developed Member Countries
- USD 25,000 for developing Member Countries, and
- USD 10,000 for Member Countries classified as Least Developed
Country (LDC) or Small Island Developing State (SIDS)