This Chapter applies to—
any special resolution;
any resolution or agreement agreed to by all the members of a company that, if not so agreed to, would not have been effective for its purpose unless passed as a special resolution;
any resolution or agreement agreed to by all the members of a class of shareholders that, if not so agreed to, would not have been effective for its purpose unless passed by some particular majority or otherwise in some particular manner;
any resolution or agreement that effectively binds all members of a class of shareholders though not agreed to by all those members;
any other resolution or agreement to which this Chapter applies by virtue of any enactment.
References in subsection (1) to a member of a company, or of a class of members of a company, do not include the company itself where it is such a member by virtue only of its holding shares as treasury shares.