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Chemical leak injures seven at LG Display plant in South Korea

18 January 2021

A chemical leak at a factory in South Korea injured seven people on January 13. The incident happened at a plant belonging to LG Display in the city of Paju, 34 miles (55km) north of Seoul near the North Korea border.

Representative image: Shutterstock
Representative image: Shutterstock

According to local authorities, tetra methyl ammonium hydroxide (TMAH) – an ammonium-type chemical substance – began leaking from pipework at around 14:20 local time. The chemical is used as a solvent in chip fabricating process and can be highly toxic.

Yonhap news agency reports that two of the injured workers received resuscitation after they collapsed. Authorities said that around 300 litres of TMAH leaked into the plant and that the leak was stopped after 25 minutes.

In a statement, LG Display apologised to the workers and said it would cooperate fully with local authorities as part of an investigation into the incident.

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