Brand strategy has been a critical issue for corporations in the competitive business world. Building a strong brand not only establish differentiating benefits but also creates significant competitive advantages for firms. Particularly, sustainability development has drawn substantial attention for corporate branding in recent years. To explore how sustainability development influences corporate branding, this research aims to analyze the case of Royal DSM, examining its sustainability development strategy and its influence on brand equity. Adopting the case study methodology, this research investigates the insights of sustainability development, as well as its effects on brand awareness, perceived quality, brand association, and brand loyalty. Implications, limitations, and future research directions are then discussed.