Maris Ltd. is an investment holding company with a diversified portfolio across five sectors in nine African countries. Betsy G. Henderson speaks with Charlie Tryon, CEO and co-founder of Maris, about investment opportunities in sub-Saharan Africa and doing business in frontier markets such as Zimbabwe and South Sudan.

Agriculture is a key investment sector for Maris, through its subsidiary company Agris. From an investment perspective, which agribusin...