ENCI

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ENCI (Eerste Nederlandse Cement Industrie - First Dutch Cement Industry) is a Dutch company based in Maastricht, Rotterdam and IJmuiden. Their core business activity used to consist of the digging of marl out of St Pietersberg, which they used to make cement. The company has been around since 1924, with some key locations being in Maastricht and Sint-Pietersberg. The Maastricht location was closed in 2020, along with the cement production.

A pair of Eurasian eagle-owls have been nesting at the ENCI quarry since 2001, making the quarry one of the most well-known nesting sites for the bird in Western Europe.