Brands including Zara, Sandro and Maje owner SCMP, Skechers and Uniqlo have accused of allegedly encouraging and profiting from the forced labor of Uyghurs in China’s Xinjiang Uyghur Autonomous Region (XUAR).

As per Sourcing Journal, a complaint has been filed against these brands by a group of nonprofits and a former Uyghur detainee.

According to Sherpa, the Collectif Ethique sur l’étiquette and the Uyghur Institute of Europe, who are represented by the law firm Bourdon & Associés, the complaint aims to expose the impunity of multinational businesses that subcontract part of their production to the northwestern region or market goods using cotton cultivated there.

As per Sourcing Journal, the complaint is supported by Members of European Parliament Raphaël Glucksmann and Reinhart Butickhofer, along with the World Uyghur Congress, is just the first of a series of filings that the European Center for Constitutional and Human Rights (ECCHR) will be submitting in other European countries in the coming months, the organizations said.

A December study by the Centre for Global Policy estimates, half a million Uyghurs are forced to pick cotton by hand through a state-sponsored “poverty alleviation” scheme. Other mass labor-transfer programs install Uyghurs from Xinjiang in factory jobs across China, with the purpose of reducing their population density and influencing, and assimilating Uyghur minorities into the dominant Han culture.