Neither China nor Japan has any experience of disposing of old chemical weapons.

ECONOMIST: Japan and China

This week he asked it to ratify another four-year-old treaty, the Chemical Weapons Convention, which would make Russia destroy 40, 000 metric tonnes of chemical agents.

ECONOMIST: Russia: Unequal abroad, punchier at home | The

Although there have been numerous accusations, there has so far not been any confirmation that chemical weapons have been used during Syria's two-year-old conflict.

BBC: 'Growing evidence' of chemical weapons use in Syria - UK