A trusted source told the GNA that Appiah named Leicester City’s Schlupp among the ten selected defenders of 30 man player list expected to be pruned to 23 for the competition.
Frimpong is among 12 midfielders expected to begin preparations on May 26, ahead of the World Cup; Ghana’s third in succession.
The GNA reports that Aduana Stars goalkeeper, Stephen Adams is the only local-based player in the team that includes four goalkeepers.
Also named in the squad is Italian Serie A side, Sassoulo’s Yussif Raman Chibsah. Making their return after months of absence are Anthony Annan and Isaac Vorsah.
Appiah is said to have presented the list to the Ghana Football Association (GFA) ahead of the official submission to the global body, Federation of International Football Association (FIFA) next month.
However, attempts to get a confirmation of the squad has proved futile as officials of the GFA are tight-lipped about who gets to make the squad.
Coach Kwasi Appiah, according to GFA sources, is due to arrive in the country later this evening after touring some countries to watch his players play.
Ghana is housed in Group G alongside, USA, Germany and Portugal.
Full squad as published by GNA
Adam Kwarasey, Daniel Agyei, Fatua Dauda and Stephen Adams
Samuel Inkoom, Daniel Opare, Jonathan Mensah, Baba Rahman, Harrison Afful, Jeff Schulpp, John Boye, Isaac Vorsah, Jerry Akaminko and Rashid Sumaila
Sulley Muntari, Mubarak Wakaso, Mohammed Rabiu, Michael Essien, Emmanuel Agyemang Badu, Anthony Annan, Yusif Raman Chipsah, Andre Ayew, Kwadjo Asamoah, Christian Atsu, Emmanuel Frimpong and Albert Adoma
Jordan Ayew, Abdul Majeed Warris, Asamoah Gyan, Kevin Prince Boateng.
Additions by GhanaWeb