Steffen Walter Aug 8, 2018:

Hong Kong stock exchange website source (2) "... 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 (see Section 5 of the joint policy statement). The Hong Kong stock market is the natural market for listings of Mainland and Hong Kong companies and the “centre of gravity” test reflects this.

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.

The appendix to the joint policy statement explains how the Listing Rules apply to an overseas company that is primary listed, dual primary listed or secondary listed on the Exchange’s Main Board. This includes guidance on the “common waivers” we are prepared to grant an overseas company seeking a listing. We consider applications for each waiver on its own facts and circumstances and the overseas company seeking a waiver must demonstrate why the waiver is appropriate. ..."

Steffen Walter Aug 8, 2018:

The Hong Kong stock exchange website ... ... includes the following explanation at https://www.hkex.com.hk/Listing/Rules-and-Guidance/Other-Res...
"Primary and Secondary Listings

Overseas companies may choose to apply for a primary listing on the Exchange. Primary listed companies normally trade all or the majority of their listed equity securities on the Exchange and so 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. To be suitable for these waivers, we require a company seeking secondary listing to normally have a large market capitalisation and a track record of regulatory compliance on its primary market. It must be primary listed on a stock exchange recognised by us as having a strong reputation for requiring high shareholder protection and corporate governance standards. ..."

(to be continued)

Steffen Walter Aug 8, 2018:

Yes, perhaps but ... ... haven't you got any information about this company? Possibly they list two types of shares, but my guess is as good as anyone's ...

Beatrix D (asker) Aug 8, 2018:

Unfortunately I don't have additional context. How about "Doppelte Hauptnotierung"?

Steffen Walter Aug 8, 2018:

This would ... ... depend on the structure of the company in question and, more specifically, on the type of its shares. The above context is far too limited to be sure.