The ASX Listing Rules govern the procedures and behaviour of all ASX listed companies (see listed company) and listed trusts.
Only public companies and public trusts are permitted to be listed on ASX. A public company (or trust) is one in which any member of the general public can acquire shares (or units) and there are no restrictions on the maximum number of shareholders (or unitholders).
In addition to prescribing pre-requisites for listing. the Listing Rules require that listed companies and trusts report announcements to ASX to keep the market informed of their activities and report profit results and other financial information within specific deadlines.