Foreign Firms in China Squeezed by U.S. Disclosure Demands, Beijing’s Security Clampdown

HONG KONG—Foreign companies in China are walking a tightrope between their need for business intelligence to comply with proliferating U.S. sanctions and mounting concerns about the risks of carrying out the due diligence required for business on the ground.

Authorities recently questioned staff at consulting firm Bain & Co.’s Shanghai office and detained the Beijing-based workers for U.S. due-diligence company Mintz Group. The news has put companies that conduct due diligence and business intelligence in China on heightened alert, with details about the visits scant and uncertainty swirling around what triggered them.