Apple says it has found nothing to link a recent spate of deaths with working conditions at one of its Chinese suppliers.
Shi Zhaokun, who was 15, died from severe pneumonia at a Shanghai hospital in October, according to China Labor Watch.
The New York-based watchdog said Shi had been working at a factory that produces iPhones and tablets for Apple (Fortune 500). The legal working age in China is 16. ,
The factory is operated by Pegatron Corporation, an Apple supplier based in Taiwan. The company has been criticized by China Labor Watch in the past.
The New York Times reported that at least five young Pegatron employees have died in recent months.
Pegatron did not confirm the number of deaths but said in a statement Thursday: "We would like to convey our deepest condolences to the families and loved ones of the employees recently passed away."
The company said strict measures were in place to verify workers' ages. Shi had used an official ID which had been "wrongly issued," it added.
Apple said its experts had so far found "no evidence of any link" between the loss of life and working conditions at Pegatron, adding "we realize that is of little comfort to the families who have lost their loved ones."
In January 2012, Apple joined the independent labor-rights organization Fair Labor Association, which promptly began inspections of working conditions at supplier factories.
China Labor Watch subsequently raised concerns about management practices, health and safety, pollution and underage workers at Pegatron factories.
China Labor Watch said Shi worked 12 hours per day and through the Chinese National Day holiday period.
According to Apple's Supplier Code of Conduct, the work week should not exceed 60 hours "except in unusual circumstances." In October, the company said it had achieved 95% supplier compliance with the requirement.
Foxconn, another major Apple supplier with factories in China, has also been fingered for similar labor violations. A spate of suicides at Foxconn factories in 2010 garnered media coverage of allegedly harsh working conditions, including unsafe facilities and illegal amounts of overtime.
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