A criminal trial centered around a food safety scandal tied to OSI Group’s Husi Food Co. has gone to trial, with two company units and ten people being accused of selling food unfit for consumption.

The case dates back to 2014, when employees of Husi Food Co., allegedly repackaged outdated chicken and beef, then allegedly sold the expired products with false labels to restaurant chains in China and Japan, including McDonald’s, KFC, Pizza Hut and Dico’s. The ten defendants were formally charged at the end of September.

According to a Channel News Asia report, the trial began on December 28 and is expected to last several days.

OSI Group has not publicly commented on the trial proceedings, but did offer this brief statement after the ten suspects were charged: ““We have confidence in China’s legal system and believe that the judicial authority will come to a fair and reasonable judgment with full respect to the facts and laws.”

Since the scandal took place, OSI Group made substantial changes to the organizational and management structures for its China operations. The company also closed the plant under investigation and removed Husi products from the marketplace.

OSI Group CEO Sheldon Lavin has also publicly apologized for the scandal.