Since Belize became a CABEI regional non-founding member in 2006, the multilateral has been one of its main sources of support and financing.

Belize has been a regional non-founding member with a gross portfolio of US$11.0 million. In 2022, CABEI formalized financing of US$24.0 million for the project to expand and rehabilitate 25.75 kilometers of the Philip Goldson-Belize highway, benefiting 39,000 users, which would total 63,800 by 2039. 

Also that same year, with the support of Korea through the Korea-CABEI Partnership Single Donor Trust Fund (KTF), a non-reimbursable technical cooperation grant of $950,000 was approved for the preliminary designs of four health care facilities for the benefit of the entire population.

In keeping with its firm intention to lead the improvement of regional competitiveness, CABEI will continue to promote increased productivity in Belize's business fabric through financing aimed at improving and facilitating productive transformation processes (including agro-industry), while duly safeguarding the environmental and social sustainability of these activities.