TreeHouse Foods, Inc., announced Monday that it has agreed to purchase Brooklyn Park-based S.T. Specialty Foods for $180 million in cash.

TreeHouse Foods, a Westchester, Illinois-based food manufacturer, said that the purchase agreement also includes an additional $15 million in cash if S.T. Specialty Foods meets certain earnings goals for the year ending on December 31.

The transaction, which is subject to customary closing conditions, is expected to close next month.

S.T. Specialty Foods is a portfolio company of Windjammer Capital Investors. It is a maker of private-label macaroni and cheese, skillet dinners, and other side dishes and food products, and its annual sales total about $100 million, according to TreeHouse Foods.

“The acquisition will align us with one of the fastest-growing food companies in North America,” Dale Schulz, president of S.T. Specialty Foods, said in a statement. “We believe TreeHouse is an excellent fit with not only our products, but also with the culture we have established here at S.T.”

S.T. Specialty Foods has manufacturing and distribution facilities in Brooklyn Park and Kenosha, Wisconsin. TreeHouse Foods said that it does not plan to make any major changes to S.T. Specialty Foods' existing operations.

TreeHouse Foods expects the transaction to add between 11 cents and 13 cents to its earnings on an annualized basis. The acquisition adds to its current product portfolio, which includes non-dairy powdered coffee creamer, canned soup, salad dressings, powdered drinks, hot cereals, salsa, jam, pickles, and more.

“S.T. has had consistent growth since its inception and will not only add to our broad product portfolio for the retail grocery channel, but it will also give us the opportunity to expand our offerings into the lunch and dinner meal occasions,” Sam K. Reed, chairman and CEO of TreeHouse Foods, said in a statement.