Opoku hyɛɛ n’adwuma ase wɔ adwumakuo a wɔfrɛ no Ghana Ports and Harbours Authority wɔ afe 2003 mu. Efiri hɔ no,  w’ayɛ adwuma ama wɔn sɛ lɔyani, ɔhwɛfo a ɔda mmara ntotoe ano ne ɔkyerɛwfo ama Ghana Ports and Harbours Authority. Sesei, ɔno na Nana Addo Dankwa Akuffo-Addo apaw no  sɛ kandifo a ɔda Tema Po so hyɛn gyinabea wɔ march bosome no mu, afe 2019 bre a Edward Kofi Osei afiri hɔ no.