This document summarizes the impact of coffee leaf rust on Latin American coffee producing countries according to interviews with coffee buyers. Coffee leaf rust has devastated coffee production in many countries, reducing outputs by 50-80% in some areas. This has led to quality issues, supply disruptions, and higher coffee prices for buyers. While not an immediate threat, climate change and disease outbreaks like rust pose ongoing risks to coffee supply chains. Some buyers are mitigating these risks by supporting sustainable farming practices among suppliers or investing in rust-resistant varieties, but changing origins or becoming less dependent on individual countries remains a challenge, especially for small buyers. Overall, coffee leaf rust highlights the need to strengthen the sustainability and resilience of the global coffee sector