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Persistent Pollutants

Pentachlorophenol plant in Mexico to close

by Marc S. Reisch
November 23, 2019 | A version of this story appeared in Volume 97, Issue 46

 

Cabot Microelectronics says it will close a pentachlorophenol plant in Matamoros, Mexico, at the end of 2021 and won’t replace it, as previously planned. Penta is used to preserve wood telephone poles. The government of Mexico asked the firm to shutter the plant because penta is a persistent organic pollutant according to the Stockholm Convention, an international treaty. The firm will take a $67 million impairment charge for the business.

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