Revised membership fees applicable from 2026. 

For organizational membership:

• Higher GDP countries: increased from €275 to €450
• Middle GDP countries:  increased from €175 to €290
• Lower GDP countries:  increased from €90 to €150

For individual membership:

• Higher GDP countries: €250
• Middle GDP countries: €180
• Lower GDP countries: €100

Thank you for your attention to this matter.