Wang Yi is the head of China's Taiwan Affairs Office of the State Council (国务院台湾事务办公室), aka the
Taiwan Affairs Office (国台办). Taiwanese media has for a good long while now been mostly out of the practice of altering, or abolishing, or "quote marking" the titles of Chinese officials.
Now Wang Yi seems to hold a second title that you probably haven't heard of even though it's no secret -- he's the head of the Communist Party of China Central Committee Taiwan Task Office (中国共产党中央委员会台湾工作办公室), and a recent NOWNews
article mentions only this CCP-centric title when talking about how Wang met with some insignificant KMT youth group.
Google searches demonstrate that it was mostly Chinese media that prefer this title, and that for the most part, .tw domains using this phrase are either KMT or government sites, not mass media. Searches on the
UDN or
China Times domains do pick up hits, but a cursory glance seems to show that the China Times normally lists both titles if they use the party title.
UDN most often calls Wang Yi the "Mainland Taiwan Affairs Office Chair" or the "Chinese Communist [Party's] Taiwan Affairs Office Chair."
China Times seems to prefer the "Mainland Taiwan Affairs Office Chair."
Liberty Times prefers "China's Taiwan Affairs Office" and the
Apple Daily is all over the place.