They probably secretly do anyway.
You mean one HUNDRED!Israel definitely has at least one.
Im pretty sure if Taiwan stopped its money for recognition policy they could afford this.Taiwan certainly has the technological capability to build an atomic bomb, and they pursued an atomic weapons program after the PRC bomb in 1964. In 1974, the CIA estimated they could have the bomb within 5 years. After the death of Chiang Kai-Shek in 1975, his son, Chiang Ching-Kuo, mostly gave up the program, although some low-level plutonium experiments may have continued into the 80s. source.