I think you will find that this is just a poorly reported, or translation of, a general mandate to issue or repurchase shares. Any actual transaction must be reported to HKEx, for example, this one:
http://www.hkexnews.hk/listedco/list...0080310187.pdf
This is the last transaction I can find for CX, and what a shrewd purchase it was.
These general mandates are extremely common in Hong Kong, although it is usually the issuance of shares with no pre-emptive rights for share holders that is the issue for those concerned with corporate governance. (David Webb and Project Vampire).
Make your own mind up, but I think this is nothing more than a red herring.