Stockholm (dpa) - China is, according to new estimates by the Stockholm peace research institute Sipri, the second largest arms producer on earth. Chinese companies produced less armaments than US companies, but more than the armaments industry in Russia and any other country, the peace researchers said in an analysis. It is Sipri's first comprehensive estimate of the Chinese armaments sector. Until now, the institute had not classified Chinese armaments companies in a global comparison due to the lack of transparent data.