DES MOINES, Iowa (AP) — A private economic development group in Iowa is refusing to release details about its failed bid to get Des Moines selected as Amazon’s second headquarters.

Greater Des Moines Partnership declined Friday to provide additional information about its efforts to attract the company. Partnership spokesman Sam Hoyle says conversations between the group and Amazon will remain private.

The Associated Press sought records from the Greater Des Moines Partnership in November about the group’s pitch to Amazon. The partnership said it wasn’t subject to Iowa’s public records laws. AP contacted the group again after Amazon rejected Des Moines.

Amazon recently narrowed its list to 20 prospective sites for the $5 billion project that could employ up to 50,000 people. More than 200 municipalities failed to make the cut.