According to the submitted National Progress Reports of the participating states, 26 of the 28 NSS countries that had at least 1 kg of HEU at the time of the Washington Summit indicated that they have taken action to reduce the amount of dangerous nuclear material.
Since 2009, 12 countries worldwide (Austria, Chile, the Czech Republic, Hungary, Libya, Mexico, Romania, Serbia, Taiwan, Turkey, Ukraine and Vietnam) had removed all HEU from their territory.