Apple puts Wistron on probation, confirms violation of supplier code of conduct that led to payment lapses Apple employees and independent auditors hired by the American tech giant have been working round the clock to investigate the issues that occurred at Wistron's Narasapura facility Nidhi Singal | December 19, 2020 | Updated 16:09 IST Apple has placed Wistron on probation and the company will not receive any new business from Apple before corrective actions are completed A week after Taiwanese contract manufacturer Wistron's plant was damaged during an incident of vandalism by a few workers, Apple's preliminary findings indicate violations of 'Apple's Supplier Code of Conduct' leading to payment delays for some workers. As a result, Apple has placed Wistron on probation and the company will not receive any new business from Apple before corrective actions are completed.