This document summarizes a presentation on a study of the cassava value chain in two districts in Tanzania. The study aimed to map the cassava value chain and determine profit margins for actors. It found five marketing channels for cassava, with the most profitable being those with fewer players and value addition. Local processors had the highest margins. The study concluded constraints include low production, poor access to inputs and markets. It recommended strengthening farmer groups, improving varieties and equipment, and enhancing value addition.