Horizon distributes its proprietary products (Spektrum is one) exclusively through Dealers who support the MAP policy. (Minimum Advertised Price).
Horizon opened its Asian Branch in 2007; I have no address or phone number but it is located in Zhuhai, China.
I know one Asian dealer is Hobby City aka Hobby King
http://www.hobbycity.com/hobbyking/store/uh_index.asp
Others? I haven't the foggiest.
A little more info here:
http://www.horizonhobby.co.uk/aeroon...o_insight.html