Only armed with 'white bunny-suits' designed to minimise contamination, workers frequently handle and inhale chemical cocktails whose purpose is to sterilise materials, including wafers. These chemicals include benzene, a carcinogen, and trichloroethylene, which are known to cause occupational leukemia and non-Hodgkin lymphoma. As the air is rapidly re-circulated, these enclosures incubate the cancer. Toiling for prolonged periods every day, workers have contracted the disease just a few years after they started working at Samsung. Some died soon after. In 2012, university researchers investigated 17 Koreans workers at Samsung's Giheung semiconductor plant who had contracted the cancers. They recommended all workers should immediately be protected from the potential exposures to chemicals. However, they said more research was required to prove a formal link with cancer and semiconductor production, because Samsung hadn't granted access to the working conditions.

Samsung victims seek compensation The first case was filed in 2007 and their ongoing efforts have achieved mixed results. The government's workers' compensation fund initially refused to pay the victims, or their families, said SHARPS spokeswoman Dr Jeong-ok Yoo Kong. These decisions were subsequently overturned by the courts. Now the government – with Samsung's help – is appealing to the country's High Court.

"Samsung has been joining the lawsuit to support the government as a 'name of reference' for the defendant," Dr Kong told Fairfax Media. The victims want the government to pay compensation in order to set a precedent for all Samsung workers. "They just want to open the door," she said. The case will next be heard on May 15. According to Korean reports, Justice Party representative Sim Sang-jung plans to introduce a bill into the South Korean parliament forcing Samsung to apologise and compensate the victims.

Kim Jun-shik, an executive vice-president of Samsung Electronics, last week told reporters in South Korea that the company is reviewing the proposals "in a sincere manner", and will make an official response soon. The company maintains a web page with information on benzene. It says it does not use benzene in its fabrication processes, but that researchers have found traces of it in its factories. The United Nations International Labour Organisation has found serious chemical-related incidents happen in workplaces, and said there needs to be a global response by governments, employers, and workers to address the issue. SHARPS's Dr Kong said Samsung last week pulled out of a meeting with SHARPs to negotiate three outcomes: an apology; compensation; and introducing prevention measures, including a third-party audit. "They may think about closing the official negotiations and just take the simple way, easy way, and pay out some money. That's it." "That's what I am worrying about: their sincerity."

Global problem The problems aren't limited to Korea's Samsung. In China, 52 workers diagnosed with occupational leukaemia signed a declaration to ban benzene. Many of these worked at factories in Hubei where semiconductors are fabricated for the iPhone. The case of one worker, 27-year old Ming Kunpeng, was documented in the film Who Pays the Price? directed by Heather White, a network fellow at Harvard University's Edmond Safra Center for Ethics. Kunpeng committed suicide last Christmas, when iPhone, iPad and smartphone beneficiaries were happily swiping-and-tapping on their gifts.

Apple has previously said it leads the industry in removing toxins from its products, and requires suppliers to meet, or exceed, American safety standards. Ms White said occupational cancer is seriously under-diagnosed and subsequently under-reported by the government. It gives global brands a false sense of security and prevents workers from accessing the medical compensation they are owed. "China has a lot of corruption in society and in business and we've interviewed many workers that have said the factory have paid off different medical personnel to under-report the severity of their illness or injury," she said. The South Korean public rallied against the revered hometown-hero Samsung following the release of a series of feature films and documentaries, which told the story of the country's first occupational leukemia victim, Hwang Yu-Mi. Ms White is producing a feature-length documentary about China's cancer-stricken workers, in a bid to raise global awareness.

"Consumers haven't been sufficiently mobilised to express outrage and concern," said Ms White, who is tapping independent investors and crowdfunding websites to raise funds for the film. "Everybody needs to understand what the young people and these workers were exposed to in these factories."