DB says it wants to cut up to two dozen jobs at its well-known Mangatainoka brewery.
It is looking at installing a smaller capacity brewery in Tararua which could mean 24 fewer full time and part time jobs, it said on Wednesday.
The brewery, known for its 84-year-old seven-storey brick tower, employs 37 and is a major employer in the town.
DB's Matt Wilson says it wants to make the brewery fit for purpose and "service the requirements of the region and enhance the current Tui HQ experience, with the view to generating further tourism in the area".
Mr Wilson said DB was committed to the Mangatainoka community and to the wider region, emphasised by spending up to $5 million on new equipment and strengthening the brewery's tower.
Details of the brewery down-scaling were still subject to consultation and may be available in about two weeks, a spokeswoman told NZ Newswire.
Any jobs would not go until May next year.
DB, owned by Heineken, also has breweries in Auckland, Timaru and Greymouth.