What is the fine-grained topic of the following text: Mr Amoabeng is a member of the Board of Directors of the Ghana Interbank Payment Settlement System (GHIPSS); a member of the Council of Enablis Ghana (Canadian Entrepreneurial NGO) and a member of the International Advisory Board of China Europe International Business School (CEIBS), in Ghana. Only return the topic.
Mr. Amoabeng's memberships in various organizations and institutions.