Workers in factories that produce parts for mobile phones in South Korea might still be exposed to chemicals that were banned in the U.S. 25 years ago. A photo reportage of Bloomberg shows the victims of chemical poisoning in South Korea.

The pictures show some of the women of Banolim, an organization that works with current and former workers in semiconductor factories in South Korea and help them with workers’ compensation cases. The organization was founded by a taxi driver whose daughter and a co-worker at a Samsung plant died from leukemia in 2007 due to chemical exposure in the workplace. The organization helps researcher to document cancer cases across the industry.

Take a look at the photo reportage here.