This document discusses social business, its types and principles. It mentions that social business aims to address social challenges through business operations without seeking profit. There are two types of social business - Type I focuses on producing goods/services for a social cause, while Type II allows investors to recover costs but not earn profits. The document provides examples like Grameen Danone, a joint venture between Danone and Grameen Bank of Bangladesh producing fortified yogurt for children. It outlines seven principles of social business given by Muhammad Yunus, including having a social objective, being self-sustainable and not allowing profits beyond cost recovery.