I can't give you the exact answer but I can tell you that Taiwan does have FIPAs with a number of its trading partners. Those include many of its diplomatic allies, but I don't think all of the 14. Also, I think, there are more recent FIPA-style agreements. They're not exactly the same as ours. Some of these don't have full dispute settlement mechanisms as part of the agreements, but two recent examples of investment-related agreements that Taiwan has completed are with India and Vietnam.
On February 14th, 2022. See this statement in context.