Apple immediately launched an investigation and worked with their manufacturers to ensure acceptable working conditions.In 2007, Apple started yearly audits of all its suppliers regarding worker's rights, slowly raising standards and pruning suppliers that did not comply.
Yearly progress reports have been published since 2008.In 2010, workers in China planned to sue iPhone contractors over poisoning by a cleaner used to clean LCD screens. One worker claimed that he and his coworkers had not been informed of possible occupational illnesses.After a spate of suicides in a Foxconn facility in China making iPads and iPhones, albeit at a lower rate than in China as a whole,workers were forced to sign a legally binding document guaranteeing that they would not kill themselves.