No response from Hsieh. But mainly http://pinyin.info/news/2006/taiwan-premier-backs-adoption-of-common-years/ Taiwan may drop idiosyncratic Republican calendar, http://www.taipeitimes.com/News/front/archives/2006/02/25/2003294523 Premier backs replacing ROC dating system http://chinapost.com.tw/detail.asp?ID=77579&GRP=A And even if they don't, there is still no reason for attaching "xiyuan".