Media will not be permitted to cover former Alaska Gov. Sarah Palin's (R) first keynote speaking engagement outside of North America, said organizers of the Hong Kong event on Monday.

Palin will speak before the CLSA Investors Forum, a gathering of CEOs, investors, and other financial players, on September 23. CLSA, which is sponsoring the event, is one of Asia's leading brokerage firms.

The rest of the forum will be open to the media, but Palin's address will be closed, one of the event's organizers told AFP.

"Some of our keynote sessions in previous years were also closed to the media. So this is not the first time," a spokeswoman who requested anonymity told AFP.

"Ms Palin has not yet confirmed with us the topic of her speech," she added.