China Labor Watch (CLW), a US-based labour rights group, has revealed harsh work conditions at a Chinese factory producing the popular Labubu dolls. The factory, Shunjia Toys Co Ltd, employed over 4,500 workers and is a key supplier for Chinese toy retailer Pop Mart. CLW's investigation involved 51 worker interviews and found illegal overtime shifts, incomplete contracts, and lack of paid leave. The factory also employed 16-year-old workers without the special care Chinese law demands. No child labour was found. CLW called on Pop Mart to act immediately to fix these issues and compensate workers. Pop Mart told the BBC it is investigating and will require any supplier to make corrections if abuses are proven. The company said it conducts annual third-party audits of its factories. Labubu dolls are famed for selling in 'blind boxes,' sparking a global craze, with celebrity fans like Kim Kardashian and Lisa from Blackpink. CLW emphasized that labour conditions in such factories depend heavily on brand sourcing policies and pressured Pop Mart to ensure fair and legal work standards. The BBC could not reach Shunjia Toys for comment.