Chinese Minister of Commerce Chen Deming (C) meets the press during a press conference held by the news center for the First Session of the 11th National People's Congress (NPC) and the First Session of the 11th National Committee of the Chinese People's Political Consultative Conference (CPPCC) in Beijing, capital of China, March 12, 2008. (Xinhua Photo)

He said that the government attached great importance to product quality and food safety, and the dumpling poisoning had been found not to be related to product quality but was a single isolated incident.

"It's been not easy for China and Japan to get their ties thawed and back to normal," he said.