Then recognized as the Republic of China, Taiwan ratified the NPT in 1970. After the IAEA found evidences of Taiwan's efforts to produce the weapons-grade plutonium, Taiwan agreed to dismantle its nuclear weapon program under U.S. pressure in September 1976. The nuclear reactor was shut down and the plutonium mostly returned to the U.S. However secret nuclear activities were exposed after the Lieyu massacre by Colonel Chang Hsien-yi, deputy director of INER, who defected to the U.S. in December 1987 and produced a cache of incriminating documents. This program was also halted under the U.S. pressure.
Then recognized as the Republic of China, Taiwan ratified the NPT in 1970. After the IAEA found evidences of Taiwan's efforts to produce the weapons-grade plutonium, Taiwan agreed to dismantle its nuclear weapon program under U.S. pressure in September 1976. The nuclear reactor was shut down and the plutonium mostly returned to the U.S. However secret nuclear activities were exposed after the Lieyu massacre !by Colonel Chang Hsien-yi, deputy director of INER, who defected to the U.S. in December 1987 and produced a cache of incriminating documents. This program was also halted under the U.S. pressure.