The Dutchman went through the ranks of young people in Manchester City and joined Celtic in September 2019 before a move to Leverkusen in January 2021.
FRIMPONG joins a Dutch contingent of Virgil Van Dijk, Cody Gakpo and Ryan Gravenberch in Liverpool.
Liverpool is also in talks with Leverkusen Sign Florian Wirtz.
The club has concluded advanced negotiations for Germany striker Wirtz, subjecting an offer of around 109 million pounds Sterling, including additional modules.
Wirtz, 22, is a key target for Liverpool and there is now a feeling that discussions on an agreement are in its final stages, with growing hope that an agreement is at hand.
