Primary and Secondary Listings
Overseas companies may choose to apply for a primary or secondary listing on the Exchange. Primary listed companies normally trade all or the majority of their listed equity securities on the Exchange and need to fully comply with the Listing Rules, unless specifically waived.
Secondary listed companies are primarily listed on another stock exchange and the majority of their equity securities are usually traded outside Hong Kong. As they already comply with the rules of their primary exchange, we grant them extensive waivers from our Listing Rules. Secondary listings are permitted on the Main Board (but not GEM) if the exchange of the applicant’s primary listing provides standards of shareholder protection which are at least equivalent to those provided in Hong Kong.
Also, with the exception of Qualifying Issuers (see “Qualifying Issuers” section below), a secondary listing applicant must have a “centre of gravity” outside Greater China.
An overseas company can, alternatively, opt for a dual-primary listing where it is subject to both full requirements here and those of another market.
Qualifying Issuers
Qualifying Issuers are issuers primary listed on a Qualifying Exchange (i.e. the New York Stock Exchange, Nasdaq Stock Market or the Main Market of the London Stock Exchange (and belonging to the UK Financial Conduct Authority's "Premium Listing" segment)). Qualifying Issuers are subject to additional and modified requirements of Chapter 19C of the Main Board Listing Rules.
Listing by introduction
An overseas company that is already listed on another stock exchange may list in Hong Kong by introduction through dual-primary or secondary listing without a fund raising. This form of listing is appropriate for applicant that has a wide shareholder base and does not wish to incur additional listing expenses for a fund raising.