“It’s been a while since we increased wages, hence the decision,” Mr. Ding said on Wednesday. The company supplies Apple, Hewlett-Packard and other large technology companies.

At least 10 people have died this year at Hon Hai’s manufacturing complex in Shenzhen, and the police are treating the deaths as suicides.

Foxconn’s chairman has rejected accusations from labor rights groups that the firm is a sweatshop and last week opened the Shenzhen plant to the media.