This Act makes amendments in the Seabed Minerals Act of 2019 by inserting the definition of minerals harvesting and includes minerals harvesting that is carried out for commercial purposes in the exclusive economic zone or other areas under the jurisdiction of the Cook Islands under the definition of mining in Section 6; inserting new section 13A regarding the power of the Authority to issue standards and guidelines; amending Sections 18 and 18A regarding restrictions on disclosure of certain information and guidelines about classification and disclosure of information; amending Section 48 regarding cadastre and register of titles; inserting new section 168A regarding change of name of title holder; amending section 178(2)(y) as regards determining fees or charges for the performance of the Authority’s functions or for any other matters under this Act or the regulations; inserting new section 178A regarding incorporation of the listed materials by reference; and inserting new sections 181B and 181C relating to transitional provision relating to Seabed Minerals Amendment Act 2024: standards and guidelines and application of new annual reporting requirement. This Act also makes minor amendments in Schedules 1 and 2. It also makes consequential amendments to Seabed Minerals (Exploration) Regulations 2020 by repealing Regulation 42 and Part 3.