U.S. energy and commodities firms will make up a major part of a business delegation visiting Beijing at the same time as U.S. President Donald Trump goes to China in November, according to an initial list.

Prominent technology and financial companies are mostly absent from the list, reflecting the slow progress Washington has made in opening up China in those sectors.

Commerce Secretary Wilbur Ross, who will lead the 29 companies that have been approved to travel on the trade mission starting on Nov. 8, said they will be looking for "immediate results" and "tangible agreements."