Interest rate is depend on the currency that you chosed.

I chosed the New Zealand currency which has the highest interest rate. Feb promotion rate is 7.8% . If you have $100,000, the rate is 8%.
Austrilia Dollar is 6-6.1%.
British Pound is 2.8-2.9%
HK Dollar is 1%?
Euoro is above 3%
No fee has beed charged.
If you are interested, you can call your local Cathay branch to find out details. Cathay has branches all over the world