Tatua invested $20.3m during the year in wastewater and engineering support services. It processed 15.15 million kilograms of milksolids.
Chairman Stephen Allen and chief executive Brendhan Greaney said gearing - debt divided by debt plus equity - averaged 27 per cent for the year, fractionally lower than the previous year's average.
Despite the uncertainty over Covid-19, the company was "cautiously optimistic" in its outlook for the new financial year.
Tatua, based at Tatuanui north of Morrinsville, has 107 shareholders who farm 37,000 dairy cows on a total of 10,000 hectares.
It employs 370 staff and exports specialised, value-added products to more than 60 countries.