Didi's SEC filing:

After the delisting, whether or not the "Company’s ADSs or ordinary shares trade on OTC Pink Sheets will depend on the actions of shareholders and independent third parties, without the Company’s involvement. Even if the Company’s ADSs or ordinary shares are traded on OTC Pink Sheets, the Company expects that the trading volume will be
significantly lower than it has been on the NYSE. Therefore, the Company expects that there will be much less liquidity in the ADSs after the delisting, which may increase the volatility in any quoted market prices and materially and adversely affect the value of the ADSs. If no market develops on OTC Pink Sheets or otherwise, you may be unable to find a buyer for the ADSs or ordinary shares and may be forced to hold the securities indefinitely with no practicable means of recouping any significant part of your investment.