This report describes activities relating to the technical review of information reported under the Convention in the fifth biennial reports and eighth national communications of Parties included in Annex I to the Convention, and conducting the 1^st meeting of lead reviewers of biennial transparency reports and the training for reviewers of biennial reports and national communications. Information on the status of submission and review of fifth biennial reports and eighth national communications is contained in document FCCC/SBI/2024/INF.10.