This document discusses cassava production and value chains in southern Vietnam. It provides data on global and Vietnamese cassava production, trade, and prices. It analyzes cassava productivity, prices, and cultivated areas in southern provinces from 2005-2011. The document describes cassava supply chains for export and domestic markets. It analyzes the financial contributions and value added of farmers, collectors, processors, traders, and factories. Finally, it summarizes feedback from value chain participants on interventions to improve productivity, processing, market information, and contracting.