From the January 15 MFA briefing:

RIA Novosti: Seventy years ago today, the Chinese government decided to develop its own nuclear weapons. China today is one of the nuclear powers, and in recent years, the US has repeatedly claimed that China is increasing its nuclear arsenal. Donald Trump previously said that China would match or even surpass the US in terms of nuclear arsenal. What’s the Foreign Ministry’s comment on this?

Guo Jiakun: As a responsible major country, China is committed to the path of peaceful development and friendly cooperation with all countries in the world. The development of nuclear weapons was a historic choice that China had to make during an extraordinary times to respond to nuclear threat, end nuclear monopoly, and prevent a nuclear war. China follows a policy of “no first use” of nuclear weapons and a nuclear strategy that focuses on self-defense. China always keeps its nuclear strength at the minimum level required by national security, and never engages in arms race with anyone.