This document outlines a student business project for Diversey Care to reimagine their sustainability thought leadership strategy. It includes 4 deliverables: developing a communication strategy, implementation plan, toolbox library, and KPI monitoring model. Market research involved analyzing sustainability best practices, conducting focus groups, and interviewing industry professionals. The proposed strategy aims to position Diversey Care as a sustainability thought leader through 10 recommendations involving social media, partnerships, certifications, CSR campaigns, and customer education. An implementation timeline and KPI monitoring targets are also presented.