SEOUL, South Korea (AP) — Samsung Electronics, the leader in the global computer chip and smartphone industries, is South Korea’s biggest company, with about 100,000 workers. An Associated Press investigation found South Korean authorities let Samsung withhold from sick workers and their families crucial information about the chemicals they are exposed to at its computer chip and display factories.

A worker-safety group has documented more than 200 cases of serious illnesses including leukemia, lupus, lymphoma and multiple sclerosis among former Samsung semiconductor and LCD workers. Seventy-six have died, most in their 20s and 30s.

It is extremely difficult for workers to get compensation for occupational diseases from the South Korean government, and without details on their exposure to toxins in their workplaces it is almost impossible.

Here are comments from Samsung workers and their families:

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PARK MIN-SOOK, 43, a former Samsung chip worker and breast cancer survivor:

“In a situation where people’s lives are at stake, (Samsung) brought uninformed kids from the countryside and acted like money is everything, using them as if they were disposable cups.”

Samsung workers sickened by chemicals in factories speak up 2 — In this March 5, 2016 photo, Park Min-sook, 43, a former Samsung chip worker and a breast cancer survivor, explains how silicon wafers are used in the semiconductor process during an interview in Seoul, South Korea. An Associated Press investigation has found South Korean authorities have, at Samsung’s request, repeatedly withheld crucial information about the chemicals that workers were exposed to at its computer chip and liquid crystal display factories. Workers who have fallen ill due to the chemicals have the right to access such data so they can apply for workers’ compensation from the state. Without this information, government officials commonly reject their cases. (AP Photo/Ahn Young-joon)

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HWANG SANG-GI, father of Hwang Yu-mi, a former Samsung factory worker who died of leukemia at the age of 22. Hwang launched a movement seeking independent inspections of Samsung factories:

“(Samsung) once offered me 1 billion won ($864,000), asking me to stay silent. The idea was to deny her illness was an occupational disease and to leave me without any power to fight back.”

Samsung workers sickened by chemicals in factories speak up 3 — In this April 22, 2016 photo, Hwang Sang-gi, father of Hwang Yu-mi, a former Samsung factory worker who died of leukemia at the age of 22, speaks during an interview outside Samsung buildings in Seoul, South Korea. Yu-mi went to work bathing silicon wafers in chemicals at a Samsung factory that makes computer chips for laptops and other devices. Four years later, she died of leukemia. Sang-gi launched a movement demanding the government investigate health risks at Samsung Electronics Co. factories after learning another worker at the same semiconductor line of Yu-mi also had died of leukemia. (AP Photo/Ahn Young-joon)

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PARK WON-HEE, 42, a former Samsung chip worker diagnosed with lupus who cannot hold a regular job because of her illness. She is a single mother of a teenage daughter:

“My house is subsidized by the government. My child is young. I asked my sisters and they don’t have money. I feel bad for people who cannot get compensation (from Samsung) but we are in an urgent situation. I asked for it to provide a better life for my child.”

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SONG BOK-JA, 72, mother of former Samsung worker Chung Ji-yeon, who died of leukemia when she was 34:

“What I find most unfair is that some people get compensated and others don’t. My daughter was diagnosed a little over 10 years (after she left Samsung). Up to 10 years, you get compensated, a little after 10 years, you don’t.”

Samsung workers sickened by chemicals in factories speak up 4 — n this Feb. 26, 2016, photo, Song Bok-ja, 72, mother of former Samsung worker Chung Ji-yeon who died of leukemia at age of 34, shows photos of her son during an interview at her house in Busan, South Korea. An Associated Press investigation has found South Korean authorities have, at Samsung’s request, repeatedly withheld crucial information about the chemicals that workers were exposed to at its computer chip and liquid crystal display factories. Workers who have fallen ill due to the chemicals have the right to access such data so they can apply for workers’ compensation from the state. Without this information, government officials commonly reject their cases. (AP Photo/Ahn Young-joon)

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KIM MI-SEON, 36, a former Samsung display worker who lost her sight after being diagnosed with multiple sclerosis. Kim lives in a government-subsidized apartment with her sisters.

“There was never any education (at the factory) about what kind of chemicals could be bad so that we could be more careful.”