If I remember correctly, China has forced the Big Four accounting companies to make their operations in China, locally owned. And in China, state secrets are a huge danger of having issues with, if your not well connected enough. The Petroleum Engineer who went to jail was a prime example of this, over "state secrets", that nobody knew were until his arrest.

US charges 'Big Four' accountants over ChinaHong Kong stock exchange Many Chinese companies are listed outside the country, including on US markets - BBC News

The US financial regulator has charged the Chinese units of five accounting firms - including the so-called Big Four - over refusing to hand over auditing data on China-based companies.

Labels: made in china