A quick search shows as of 2019, Fairphone's suppliers included the Chinese company O-Film [0], which at the time was using forced labor from Xinjiang. They probably had no way of knowing this; Apple [1] was burned by the same firm. The company transported Uyghur victims to a factory southern China (Jiangxi in the Bloomberg article), so Xinjiang wasn't indicated as part of the supply chain anywhere.
How much actual impact do these kinds of corporate efforts accomplish? How much merit should we credit these "best-effort" attempts, when when's all said and then, there's still (probably) concentration camp labor in the end product?
[0] https://www.fairphone.com/wp-content/uploads/2019/09/FP3_Lis... (page 12, "cameras")
[1] https://www.bloomberg.com/news/articles/2021-03-17/shares-of...
>"The Australian Strategic Policy Institute said in a report last year that Ofilm used at least 700 Uyghur laborers from Xinjiang at a factory in the southern province of Jiangxi. The workers were sent there in late April 2017 as part of a state-sponsored labor transfer program, the think tank said."
>"The Uyghurs were expected to “gradually alter their ideology” and express gratitude to China’s ruling Communist Party for their work assignments, the think tank said, citing Chinese-language news articles."