Annual Maintenance fees are for the annual re-registration and directory administration for all your codes, including: Participant APIR Codes, Product APIR Codes, SPINs and ISINs. This also includes any changes that may occur to your participant or products during the year e.g. name changes, entity changes etc. Annual maintenance period is from 1 July to 30 June and the fees are charged in advance.
Product archives are charged separately, see the next question for more information.