Xinjiang cotton found in Adidas, Puma and Hugo Boss tops, researchers say

Traces in shirts and T-shirts appear to contradict German firms' promises to revise supply chains

Researchers say they have found traces of Xinjiang cotton in shirts and T-shirts made by Adidas, Puma and Hugo Boss, appearing to contradict the German clothing companies' promises to revise their supply chains after allegations of widespread forced labour in the Chinese region.

Recent reports have suggested more than half a million people from minority ethnic groups such as the Uyghurs have been coerced into picking cotton in Xinjiang, which provides more than 80% of China's and a fifth of the global production of cotton.