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South Korea's Hanwha Chemical says explosion at PVC plant, five killed
The explosion occurred during welding work to expand a waste water disposal facility at its No.2 plant, located in Ulsan, about 300 kilometres (186 miles) southeast of Seoul, the company said in a statement on Friday.
The affected plant makes polyvinyl chloride (PVC), a general-purpose plastic used in wide range of products.
Hanwha Chemical shares had fallen 3.91 percent to 19,700 Korean won (11.3 pounds) by 02:52 a.m. BST, compared with a 0.53-percent decline in the broader market.
(Reporting by Meeyoung Cho, Seung-yun Oh and Brian Kim)