Samsung deliberately kept secret the harmful chemicals its South Korean workers were exposed to, fearing its competitors would learn trade secrets.

There have been 200 cases of serious illnesses at Samsung’s LCD factories, including leukemia, lupus, lymphoma, and multiple sclerosis. There’s no question that Samsung tried to cover it up, and it had government help.

Samsung has been getting away with worker abuse for far too long, in part because it makes up one quarter of South Korea’s entire GDP.

Take action by signing the petition of SumOfUs and tell Samsung to compensate the sick workers and their families and improve safety measures so this never happens again.