Next to a seam with sodium chloride in Veendam, there is a seam with possibly the purest magnesium chloride on the planet. This is dissolved and pumped above ground by NedMag, which transports the brine by pipeline to Delfzijl.
Magnesium chloride is used to produce magnesium hydroxide, a fire retardant. In the past, the economic case for the production of magnesium from this salt deposit was studied, but the process would yield large quantities of chlorine – too much for the chorine market.
NedMag mines the salt and produces the magnesium hydroxide, which is then shipped to its customers.