Most American companies in China believe the business environment there will worsen, with the vast majority worried that Chinese industrial policies will cut into their market share over the next five years, according to the U.S.-China Business Council’s annual members survey. The survey results , released Tuesday, show an increasingly difficult atmosphere for U.S. companies in China. Participants cited U.S.-China relations, data security rules, export controls, investment restrictions and competition with Chinese companies as the most challenging issues. “Other challenges...