Workers for some suppliers of Chinese fast fashion giant Shein are still working 75 hours a week, despite the company promising to improve conditions, a report suggests. A new investigation by Swiss advocacy group Public Eye has followed up on its 2021 report, which found a number of staff across six sites in Guangzhou were doing excessive overtime. According to the group, who interviewed 13 employees from six factories in China supplying Shein for its latest investigation, excessive overtime was still common for many workers. Shein has grown rapidly since it was founded in 2008, and was one of many online businesses to boom during the Covid pandemic lockdowns. Its formula of offering a wide range of cheap clothes - backed up with campaigns on Instagram, TikTok and other social media - has turned it into one of the biggest fashion retailers in the world. It relies on thousands of third-party suppliers, as well as contract manufacturers, near its headquarters in Guangzhou, and is able to turn around a new item in a matter of weeks, rather than months. However, an employee who has worked at sewing machines for 20 years told Public Eye: “I work every day from 8 in the morning to 10.30 at night and take one day off each month. I can’t afford any more days off because it costs too much." Shein's Code of Conduct for its suppliers states that workers should not work longer than 60 hours a week, including overtime.