The original submission was rejected as not all four dataset characteristics can be found online. More specifically, Company Names and CR numbers are available, but not Company Addresses.
There is also a list of old company names available for free in .PDF format. This provides neither a CR number nor a company's address:
Final way of accessing data is through the Companies Registry by visiting data.gov.hk > Data Providers > Companies Registry. There is a List of Newly Incorporated /Registered Companies and Companies which have changed Names available for free, downloadable at once, and updated weekly in .XLS format. However, this also does not include company addresses, only CR numbers and Company names: