The Women's Tennis Association will resume tournaments in China this year having accepted an investigation into the sexual assault allegations made by former player Peng Shuai will not be carried out by the Chinese government.
Former doubles world number one Peng said in November 2021 she was "forced" into a sexual relationship with former China vice-premier Zhang Gaoli.
The WTA suspended its end-of-year events in China and said it would not return until there was an investigation and it had proof of Peng's safety.
"We've been in this for 16 months and we are convinced that at this point our requests will not be met," WTA chief executive Steve Simon told BBC Sport.