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In this Jan. 27, 2016 photo, Kim Mi-seon, 36, former Samsung display factory worker who lost sight in 2014 since diagnosed with mu In this May 1, 2016 photo, members of the electronics industry workers advocacy group Banolim perform during a rally against the e In this Jan. 27, 2016 photo, Kim Mi-seon, 36, former Samsung display factory worker who lost sight in 2014 since diagnosed with mu In this March 5, 2016, photo, Park Min-sook, 43, former Samsung chip factory worker and a breast cancer survivor, shows her pictur In this March 5, 2016, photo, Park Min-sook, a former Samsung chip factory worker and a breast cancer survivor, shows her pictures In this April 22, 2016 photo, a man looks at boards showing portraits of victims who were former employees of Samsung semiconducto In 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, sh In this March 5, 2016 photo, Park Min-sook, 43, a former Samsung chip worker and a breast cancer survivor, explains how silicon wa In this Feb. 25, 2016 photo, Lee Jong-ran, an attorney at the electronics industry workers advocacy group Banolim, holds a noteboo In this April 22, 2016 photo, Lim Ja-woon, a lawyer who represents 15 former employees of Samsung semiconductor and display factor 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 ag 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 ag In this April 22, 2016 photo, portraits of former Samsung semiconductor factory worker Hwang Yu-mi who died from leukemia in 2007, In this April 22, 2016 photo, messages for victims who were former employees at Samsung semiconductor factories are displayed outs