ST. LOUIS, MO. — Post Holdings, Inc. is considering closing its manufacturing facility in Modesto, Calif., to improve operational efficiency.

“We are committed to addressing our excess capacity,” said Terrence E. Block, president and chief operating officer. “This initiative, if we proceed, would provide the increased efficiency necessary to compete in today’s environment. … If Post decides to close the Modesto plant, we are committed to helping our employees through the transition.”

The company is seeking input from the union that represents the hourly employees and expects to make a final decision by the end of April. The plant has 140 employees, and production is expected to be moved to other Post facilities within its network.

The plant produces ready-to-eat cereal and ready-to-eat cereal mixtures, according to the 2012 Directory & Buyers Guide from Sosland Publishing, Kansas City.