as long as they use GSM, you should be fine. the U.S. Version of Amaze is a pentaband world phone...it should work anywhere in the world...check your band frequencies with the provider and look in www.gsmarena.com
under amaze 4g to see if those bands match, just to be on the safe side.
besides that I don't see any reason why you wouldn't be able to use the phone. You don't have to root.
here are the bands:
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 1700 / 2100 or HSDPA 1700 / 1900 / 2100
HSDPA 850 / 1900 / 2100
HTC Amaze white: rooted S-OFF CM nightly | 4EXT recovery |
Samsung Galaxy Tab 10.1 white: Stock rooted honeycomb 3.1 | 18.104.22.168 CWM
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