The closures of an Aurora manufacturing plant, a Woodridge Sam’s Club and two more Chicago-area Savers thrift shops contributed to more than 500 layoffs reported to the state in June.

Some 200 people will be out of a job at the Philips manufacturing plant in Aurora, where the Dunlee brand, acquired by Philips in 2001, makes medical imaging component parts.

Philips, based in Amsterdam, plans to close the plant by the end of the year and move production to an existing company site in Hamburg, Germany, the Dutch company said in a statement. Dunlee moved its headquarters to the Aurora facility in 1994.

“This decision was not taken lightly, and reflects the fact that the GTC (Generators, Tubes and Components) replacement market, which was primarily served by the Aurora facility, has been significantly declining in recent years,” the statement said. The company expects future growth to be in the X-ray segment for original equipment manufacturers, currently served by the Hamburg facility.

Philips said affected employees will get a comprehensive separation package and a limited number will be offered the chance to provide GTC replacement market service and technical support for Philips in North America.

The Philips closure was the largest layoff reported last month to Illinois’ Department of Commerce and Economic Opportunity. The state’s Worker Adjustment and Retraining Notification Act requires employers with at least 75 employees to notify the state 60 days in advance of plant closings or mass layoffs, which are defined as layoffs that affect at least a third of a company’s workforce, or at least 250 workers for a company of any size.

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Sam’s Club, which closed its store in Woodridge at the end of June, was listed in the state’s layoff report with 158 employees affected. The store had been there since 1993.