Bankens långivning inden for rammerne af den fjerde Lomekonvention har været for beholdt områderne energi (infrastrukturer for elproduktion og -transmission samt ud nyttelse af olie- og gasforekomster), infra strukturer for kommunikation (transport og telekommunikation), miljø (vandforsyning og kloakering), industrifremme og turisme samt tjenesteydelser i forbindelse dermed.
EIB lending under the Fourth Lomé Convention has concentrated on: energy (power generation and transmission in­frastructure, oil and gas development), communications infrastructure (transport, telecommunications), environment (water supply and sewerage), industrial devel­opment, tourism and services linked to these sectors.