Today I added a few more iShares A50 ETF (HK:2823) to the portfolio. I paid HK$8.99 for the additional units.
Only after I placed the order did I notice J-D's comment on my previous purchase. He is quite correct that the CSOP A50 (HK:2822) would have been better - lower premium to NAV and lower total expense ratio.
Going forward, any additional China ETF purchases will be for HK:2822 rather than HK:2823 (assuming the premium/discount does not reverse). When the time comes to sell, it will be the reverse (subject to the same assumption).
As an aside, I am slightly time poor at the moment - still working full time while my university course has started which gives me less time to do the research. It was slightly disappointing that, of the two new stocks that I did look at closely, on quickly overran my limit order (CR Power) and the other was on our restricted list.