Apple is still struggling to improve working conditions at its supply chain factories. China Labor Watch and Bloomberg reported on Tuesday that Catcher, a key supplier for iPhone and MacBook casings, makes workers endure harsh safety conditions and unfair work terms in a factory in Suqian . According to observers and discussions with workers, the machines are not only loud, but spray fluid and metallic particles that frequently hit workers' faces only some of which have access to safety goggles and gloves. From the report:"I asked for the earplugs many times but they didn't have any. The loud noise of 'zah-zah' made my head ache and dizzy," one of those employees told Bloomberg.