Britain says it plans to tighten rules in order to rid its supply chain of products linked to the forced labor of Uighurs in China.
British Foreign Secretary Dominic Raab outlined the plan in Parliament on Tuesday.
He referred to evidence of human rights violations committed against Uighur Muslims in the Xinjiang Uygur Autonomous Region. China denies the claim.
Raab said British companies will be required to check their supply chains to determine whether any of the goods or materials are linked to forced labor or to other rights violations.
He said companies will be fined if they fail to carry out the due diligence checks or report the results.
Raab also said any supplier profiting from forced labor will be barred from government procurement.
The foreign secretary said the measures will send a clear message that human rights violations are unacceptable.
He said, "We want a positive and constructive relationship with China. We will work tirelessly towards that end. But we won't sacrifice our values or our security."