More than 90 percent of survey respondents reported that their China operations are profitable, the highest percentage reported since the United States China Business Council began surveying its members, said a report released on Thursday by the Washington-based nonprofit organization

USCBC said that while slowing economic growth, rising costs and "persistent operating challenges" continue to "moderate corporate optimism toward the China market", companies are "not pessimistic".

Still, the report said, fewer companies in this year's survey said that their profit margins in China are better than that of their global rates and fewer companies reported double-digit revenue increases compared with previous years.