I think they have Titletrade and Swift back there, heard the locals are having more fun trading the tse which has tremendous volumns daily
Title seems having office in Taiwan. You can check it on there website. http://www.titletrading.com/locations.html Perhaps you would like to send them an e-mail and ask. info@titletrading.com
I know there are two Swift office in Taiwan One in north - Taipei City and one in South -Kaoshung City Also Title is steal people from Swift too locally I think its a good thing, more competition...