Agyemang is the second striker that Derby have brought in for a significant fee this summer, although what it cost to add Luton forward Carlton Morris was not disclosed.
But with the American coming with a price tag that could rise beyond £7m with add-ons, he becomes the most expensive signing the East Midlands club has made since David Clowes took ownership of the club when it was in administration in 2022.
Although the price paid is officially undisclosed by Derby, Charlotte say, external they have received a club-record “multi-million-dollar” fee for Agyemang and retain a sell-on percentage.
“Patrick’s rise over the past 18 months put him on the radar of many clubs across Europe, and ultimately Derby County’s offer convinced the club and player to reach an agreement,” said Charlotte general manager Zoran Krneta.
“To get a deal done, it needs to be in the best interest of the club first and foremost, but also of the player and in this case, it achieves both.
“He becomes the first player in our club’s history to come through our player pathway and be sold in a multi-million-dollar transfer.”
Watch all your favorite Amazon Prime Video Sports broadcasts live and free. Get access to NFL, NBA, NASCAR, WNBA, and more – all included with your Prime membership!