Dutch property investor Nieuwe Steen Investments (NSI) has moved outside its home market for the first time with the acquisition of a shopping centre in Switzerland. The company has reached agreement with a Swiss seller on the purchase of the Herti mall in Zug for CHF 35 mln (EUR 21 mln). NSI said the deal fits in with its internationalisation strategy, and is expected to be finalised in the first quarter of 2008.