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Kuraray to divest Calgon Carbon’s ultraviolet water-treatment operations to De Nora

By Mary Page Bailey |

Kuraray Co. (Tokyo) has announced plans to divest operations related to UV-based water treatment and ballast water treatment run by Calgon Carbon Corporation, a wholly owned subsidiary based in the United States. The divested operations will be transferred to De Nora Water Technologies LLC in Italy.


Acquired by Kuraray in 2018, Calgon Carbon is currently the world’s largest activated-carbon manufacturer, boasting a diverse lineup of activated carbon products ranging from bituminous coal-based carbon and wooden carbon to palm shell-based carbon. Employing these offerings, Calgon Carbon is striving to expand its activated carbon-related operations that encompass a breadth of applications, including water and air purification, as well as other environmental solution fields. As a result of the review of Calgon Carbon’s business portfolio, the Kuraray Group has decided to transfer its UV- and ballast-related operations to De Nora, a leading company in these fields. Calgon Carbon and De Nora have thus agreed on the business transfer and signed a basic agreement with regard to the matter. The date of the business transfer is scheduled for end of June 2021.

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