Build Nigeria's Sustainable Fashion Circular Economy

The okirika (second-hand clothing) market is deeply embedded in Nigerian consumer culture, providing affordable clothing to millions while inadvertently practising circular economy principles. But the sector is entirely informal, has no quality grading system, no digital inventory, and no pathway for Nigerian designers to participate in circularity by selling deadstock or repaired garments. Your challenge is to design a sustainable fashion circular economy model for Nigeria that formalises and scales the okirika system while creating new revenue streams for Nigerian designers. It must include a grading standard for used clothing, a digital platform connecting okirika traders with commercial buyers, and a pathway for local designers to sell repaired or upcycled items at a premium. Submit a business model and design document (max 12 pages) including: the grading standard, digital platform design, designer participation model, economics for okirika traders versus current earnings, and a plan to process 1,000 tonnes per month across three cities within 24 months. Judging criteria: 35% business model viability for okirika traders, 30% platform design, 20% designer participation design, 15% scale plan.