A U.S. Court of Appeals for the Ninth Circuit panel upheld price-fixing convictions against Taiwanese electronics manufacturing company AU Optronics of America and two of its executives Thursday after signaling last year that it might upend the case.

The panel upheld the verdicts against Hsuan Bin Chen, the company’s president and COO, and Hui Hsiung, its executive vice president, for meeting and conspiring with five other Asian manufacturers to fix the prices on LCD panels imported and sold in the U.S. and Asia. Chen and Hsiung were each sentenced to three years in prison. The panel also affirmed a $500 million fine against AU Optronics.