Candidates in an organization or a Firm submit the annual progress report every year after they pass the public presentation.
Annual progress reports have two purposes. First, they review the progress made during every year of study. It helps both candidates and their supervisors to monitor their plans and avoid errors that can be easily avoided in case of unrealistic timetables, delays, etc.
Second, the annual report may document changes that become necessary or even required during studies; maybe this was not expected when the project was started. However, the supervisor of the study/research program must accept these changes. It may have been impossible to collect the required data initially. Because access to the critical data maybe not possible, but with time, there may be new opportunities, such as holding a new conference or workshop on a project title.