Possible Clues:

• Factory where workers suffer from damp conditions?
• Pots he was getting knocked out in a factory of exploitation
• Factory with low-paid workers
• Explosive tape shows workplace with poor conditions
• Potentially what poses threat to workers' health?
• Muckraker's target
• Factory with low pay and long working hours
• Labour's bound to reveal the exploitation business
• Factory using underpaid labour
• Hates boss in exchange - an exploitive place to work