The Dairy Production Plant in Sejny has been part of Spółdzielnia Mleczarska Mlekpol in Grajewo since 1 January 2002. SM Mlekpol in Grajewo joined with Spółdzielnia Mleczarska Sejnmlek.

The Dairy Production Plant in Sejny of Mlekpol  processes on average approx. 25 mln litres of milk.

Sejny dairy products are made of milk from cows grazed on the cleanest Podlasie meadows. Natural milk producers, cows, are fed with non-GMO products.

From the highest quality raw material, the Dairy Production Plant in Sejny provides the top-class Dutch- and Swiss-type ripened cheese. The Sejny powder plant produces exceptional whey powder.

The dairy plant in Sejny has received the quality certificates:

IFS Foodand HACCP.