 From 1968 the SMN also closely cooperated with KJCPL–RIL (Royal InterOcean Lines) of Amsterdam and Hong Kong.This cooperation amongst friendly Dutch shipowners eventually resulted in a full merger.On January 20th, 1970, the SMN joined with three other companies to form the Nederlandsche Scheepvaart Unie (NSU) and ceased to exist as a separate entity, having just failed to reach its 100th anniversary.