Eco-friendly entrepreneur Thato Kgatlhanye is the founder of Rethaka Repurpose Schoolbags, which designs and manufactures school bags from recycled plastic bags in South Africa.
The bags also have a built-in solar light that charges during the day and can be used by school children living in homes without electricity to study after dark.
Ms Kgatlhanye won $50,000 (£34,000) in prize money to start off her business. This initial investment went into machinery and staff salaries.
The company now employs 20 people and there are plans to expand production to include new lines.