German discount supermarket Aldi has confirmed that it is investigating the New Zealand market, according to the New Zealand Herald newspaper.

The paper reported earlier that Aldi, which has more than 5000 stores worldwide, had filed almost 130 applications to trademark its brands in New Zealand since February.

In a written response to inquiries about the trademarking, Aldi group managing director Michael Kloeters said: "With regards to the potential entry into the New Zealand market, we would like to advise that this is being investigated, hence we are unable to make any further statement on that matter."

Richard Umbers, managing director of Progressive Enterprises, said Aldi was widely expected to come to New Zealand eventually.He was "not at all surprised" to hear confirmation that Aldi was considering the move.

Aldi opened its first Australian store in January 2001 and now has about 100 stores.