Chinese President Xi Jinping signed an order to formally adopt revisions to a law on “Guarding State Secrets,” according to state media, which reported that legislators passed the updated law at a meeting earlier that day.

That article on work secrets is “the most problematic,” said Jeremy Daum, a senior fellow at Yale Law School’s Paul Tsai China Center.

For foreign businesses, it’s the lack of clarity that will remain an unquantified risk to doing business in China," Daum said.

While China regularly discloses a certain amount of information about government plans and economic data, the country is often considered more opaque relative to many developed countries.

For example, high-level officials in China have disappeared from public view without formal explanation. Policies, even those that support businesses, don’t always come with specific implementation dates.