Complex sentence: In December 2009, the company merged with Dutch press agency PCM Publishing, forming a subsidiary "De Persgroep Nederland", which comprises the newspapers Algemeen Dagblad, de Volkskrant, Trouw, NRC Handelsblad, nrc.next and Het Parool.
Split into simpler sentences: In December 2009, the company merged with PCM Publishing to become "De Persgroep Nederland". The enlarged group adds the newspapers Algemeen Dagblad, de Volkskrant, Trouw, NRC Handelsblad, nrc.next and Het Parool.