CHS will restate three years of earnings after discovering what the cooperative calls a technical accounting error. In a letter to cooperative leaders, CHS says it is restating results for 2015, 2016, 2017 and part of 2018, because rail freight contract values and quantities were intentionally overstated and certain rail freight items were incorrectly accounted for as derivatives on the balance sheet. Management discovered the misstatements during an investigation and has since terminated the employee responsible. CHS has filed a document with the Securities and Exchange Commission announcing the intent to restate the financial results. CHS says that while the investigation is not yet complete, findings to date indicate there was no monetary loss, however the company will incur additional costs related to this matter. Any overstated non-cash values will be written off and reflected in the restated financial results.