A group of Chinese workers who were poisoned while manufacturing iPhones say Apple and its supplier have yet to provide for the additional medical treatment they need, reports “PC World” (http://macte.ch/JBOnx).

In 2009, 137 workers at an Apple supplier factory in Suzhou, China were exposed to n-hexane, a chemical cleaning agent. Apple has said the workers have been all successfully treated since the incident occurred. But a group of remaining workers at the factory say their health is worsening and that Apple has yet to do anything to help them, according to “PC World.”

The workers have even sent an e-mail message to Apple CEO Steve Jobs asking him to intervene, the article adds. It the third e-mail the workers have sent.