Political tensions and a slowing economy in China have led to declining confidence among US businesses operating there. A survey by the American Chamber of Commerce in Shanghai revealed that optimism about the five-year outlook in China has reached a record low. Many companies are concerned about tensions between the US and China, with one-third reporting that China's regulatory environment for foreign companies has worsened. The deteriorating relations between the two countries have impacted businesses, with China criticizing US efforts to limit its access to advanced technology.