President Xi Jinping delivers a speech at the opening plenary of the fourth Nuclear Security Summit (NSS) in Washington on April 1, 2016. Provided to China Daily

WASHINGTON -- Chinese President Xi Jinping on Friday urged countries around the world to increase national input and expand international cooperation so as to further firm up the global nuclear security architecture.

In a speech delivered at the opening plenary of the fourth Nuclear Security Summit (NSS), Xi recalled that he envisioned the building of a global nuclear security system featuring fairness and win-win cooperation at the third NSS in The Hague.

In order to realize that goal, which will "provide strong and sustainable institutional guarantee for mankind to benefit from nuclear energy with security," Xi proposed that members of the international community step up political input, national responsibility, international cooperation and nuclear security awareness.