What is Annual General Meeting?

Legal Definition
An annual general meeting (commonly abbreviated as AGM, also known as the annual meeting) is a meeting of the general membership of an organization.

These organizations include membership associations and companies with shareholders.

These meetings may be required by law or by the constitution, charter, or by-laws governing the body. The meetings are held to conduct business on behalf of the organization or company.
-- Wikipedia
Legal Definition
A meeting of all the interested parties of a firm that is required by law yearly. It must occur every 15 months at the latest. Items of busines must be discussed by all interested parties. It is called an annual meeting in the US.