LG Chem to Invest 125 Billion Won to Increase Output of Water Treatment Components


By Kim Seung-yeon

SEOUL, Aug. 28 (Yonhap) — LG Chem Ltd. declared Monday that it is allocating 124.6 billion won (US$94.1 million) over the next two years to expand its manufacturing facility for its essential filter membrane product used in desalination.

The facility, located in the central provincial city of Cheongju, will have an annual production capacity of 400,000 reverse osmosis (RO) membranes, enough to desalinate some 1.57 billion tons of seawater every year.

This is equal to supplying treated water to about 16 million inhabitants of South Korea, or a third of its population, daily, LG Chem said.

An RO membrane is similar to a filter in a water purifier, but it is crafted with a polymer that filters the seawater down to the molecular level to remove salts and other chemicals.

LG Chem’s RO membranes have a 99.89 percent removal of salts, utilizing the company’s unique thin film nanocomposite technology.

The expansion work at the Cheongju plant will be completed by July 2025, based on which LG Chem will seek to double the growth in water treatment in the next five years.

The Cheongju RO membrane factory will be powered by 100 percent renewable energy by 2030, LG Chem added.

LG Chem, the country’s premier chemical producer, ventured into the water treatment sector with its acquisition of NanoH20, a U.S.-based water treatment company, in 2014.

In May, the company reported that it was awarded a contract to exclusively provide its RO membranes to a joint desalination project in Israel.


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