Some of Japan's biggest firms have suspended operations at some factories in China as safety concerns grow amid violent anti-Japan protests.
Panasonic said its factory in Qingdao would remain shut until 18 September, while Canon has also temporarily suspended operations at three plants.
Honda, Mazda and Nissan are stopping car production for two to four days.
The violence followed Japan's purchase of islands in the East China Sea which China claims sovereignty over.Boycotts?
Camera maker Canon's affected factories are in the south-east of the country at Zhuhai and Zhongshan in the province of Guangdong and at Suzhou, near Shanghai.
A spokesperson for electronics giant Panasonic told the BBC that the firm would continue to monitor the situation over the next two days.
Honda's spokeswoman, Natsuno Asanuma, told Reuters the company was suspending production at two factories each in the southern city of Guangzhou and the central city of Wuhan. The company had seen some stores in Qingdao damaged by arsonists.