It appears that Taiwan will also take part in Wiki Loves Monuments 2013, so it needs to be added to the monuments database.
Not sure how the lists situation looks like at the moment; there are some zh.wikipedia pages linked from the site in the URL field, but they are based on those awful wikitables at the moment and will need to be changed into the Proper Format[TM].
For languages, it seems that Standard Chinese is the sole official language of Taiwan, so the lists will probably be published on zh.wikipedia (can I say 'Chinese', please?).
For a list of ISO 3166-2 codes for Taiwan, go to [1] — note that there might be some problems with those special municipalities that don't have codes assigned to them (yet).
References
Version: unspecified
Severity: normal
URL: https://commons.wikimedia.org/wiki/Commons:Wiki_Loves_Monuments_2013_in_Taiwan/List