Canon will invest 9.1 billion yen to build a printer factory in China, according to the Nikkei newspaper.

The move comes amongst growing concern from international companies over worker unrest in China, following strikes at the plants of Japanese car manufacturers Honda and Toyota. Younger workers, which now make up the majority of China's migrant labor force, are quicker to speak up when they feel their rights are being violated than older co-workers, according to a report by the country's official trade union -the All-China Federation of Trade Unions.

Young migrant workers between the ages of 16 and 30 number about 100 million, making up nearly two-thirds of China's estimated 150 million migrant laborers and nearly half of the country's 230 million workers overall, said the study.