By Katherine Masters
NEW YORK (Reuters) - Roughly 27% of tests performed on shoes and garments collected by U.S. Customs and Border Protection in May showed links to cotton from China’s Xinjiang region, which has been banned because of concerns over forced labor, according to documents obtained by Reuters under the Freedom of Information Act.
The results, which have not been previously reported, highlight the challenges of complying with the U.S. law aimed at blocking imports of cotton linked to forced labor in China. It requires cutting out the far western region from apparel supply chains.
To help enforce the law, customs officials have turned to isotopic testing, which can link cotton to specific geographic areas by analyzing the concentration of stable elements like carbon and hydrogen present in both the crop and the environment in which it has been grown, experts say.
Ten of the 37 garments collected by Customs and Border Protection in May returned as “consistent” with Xinjiang, the documents show. So far, officials have collected at least three batches of footwear and apparel as part of their enforcement efforts, on Dec. 22, 2022, April 11, 2023, and on May 23, 2023, according to government documents released to Reuters.
Overall, 13 of 86 total tests, or 15%, were deemed to be consistent with Xinjiang.
Much of the other information on the documents was redacted, including brands of the garments that were tested. Descriptions of the items detail a range of apparel, from boxers, jeans and tee-shirts to baby onesies and dresses. All contained cotton, in some cases mixed with other textiles such as spandex and rayon.
One item collected in May that returned as consistent with Xinjiang was described as a “Mickey T-shirt” made from a blend of cotton and polyester. Laura Murphy, a professor of human rights and contemporary slavery at Sheffield Hallam University in England, said the range of products and high rate of positive samples underscored the difficulty of enforcing the ban.
"The amount of Xinjiang cotton entering the U.S. should be zero," she said. "So, anything above zero percent should be a real warning."
Customs officials did not immediately respond to questions about the test results, including how they selected garments for the analysis.
In June, the agency told Reuters in June it “prioritizes action against the highest-risk goods based on current data and intelligence,” but said sharing more details publicly would “compromise the success of our work and therefore U.S. economic and national security.”