Stepan Company announced it plans to cease all production activities and shutdown its plant in Ramara Township by the end of 2016.
Approximately 30 people will lose their jobs as a result of the plant closure.
Chemical products manufactured at the plant will be moved to other production sites within Stepan's existing North American network.
"The decision to close Longford Mills and reduce our workforce was difficult given the skills and commitment of the employees at the site," said F. Quinn Stepan Jr., President and CEO of Stepan Company in a press release.
"The plant closure will allow us to improve our asset utilization in North America and further reduce our fixed cost base. We will work closely with our customers to seamlessly transition our supply chain to other Company sites in North America."
The Northfield, Illinois based company produces surfactants, which are the key ingredients in consumer and industrial cleaning compounds.
The total remaining costs associated with shutting down the plant are expected to be $8 million.
The company said other significant costs related to severance for workers and plant shutdown expenses are expected to total $4 million.
