Yeah, but they're suiciding at work, so it's safe to assume it's work related.
It's _at_ work because the workers live on campus in dormitories.
I agree with the previous poster, it's like a small city and probably has the problems of a small city. If you read the Bloomberg article, at least two of the jumped from their apartment blocks.
The article also mentions both Apple and HP are investigating - so it's not _just_ Apple. ( ...employs about 800,000 workers in China making electronics for customers including Apple, HP and Sony Corp.)
Nine deaths in 400,000 is still below the avg of 16.9 deaths in 100,000 in China.
(I did a quick Google, it's 16.9 suicides per 100k for males in China. The U.S. is even higher at 17.6 !)