Frisia Zout is located in the Dutch Province of Friesland and was established in 1996 as "Harlinger Zoutfabriek Firma". The G ... ermany based K+S Group took over the plant in 2000 and renamed it Frisia Zout. Using the so-called solution mining process the esco subsidiary produces high-quality vacuum salt, which comes from a depth of about 2,800 metres. read more