Chinese Government Demands Japan to Return Weapon-Grade Plutonium to the US as President Obama Has Requested

"G2" in complete agreement in this case. See my post in January this year for the demand from the other G2 nation.

From Xinhua (2/19/2014; emphasis is mine):

China calls on Japan to return plutonium to U.S.

BEIJING, Feb. 19 (Xinhuanet) -- China has voiced serious concern over Japan’s possession of weapons-grade nuclear material. The US has been calling for the return of over 300 kilos of weapons-grade plutonium, which it loaned to Japan for research during the Cold War.

The Chinese Foreign Ministry is pressing Tokyo to return the plutonium to the US as soon as possible. At a routine news conference on Monday, Foreign Ministry Spokesperson, Hua Chunying, said Japan’s large stockpile of plutonium poses serious nuclear security and non-proliferation risks.

China is calling on Japan to settle the imbalance between its supply and demand of nuclear materials, in accordance with International Atomic Energy Agency rules.

"China has been paying great attention to nuclear proliferation, the safety of nuclear material, and its potential threat to regional security. According to the rules of the International Atomic Energy Agency, each country should ensure a balance of supply and demand when it comes to nuclear material. Japan storing large amounts of weapons-grade material violates such rules. It is obvious that only the peaceful use of nuclear energy can guarantee no security issues will arise. China urges Japan to give a concrete explanation, and take responsibility for the safety of international society, comply with its obligations, and return the materials to the US as soon as possible.” Hua said.

"A complete explanation" is simple enough - the US gave Japan 300 kg of weapons-grade plutonium. (The understanding in Japan is that this plutonium is not "loaned" but gifted. )

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