The document discusses corporate sustainability communication (CSC) in small- and medium-sized enterprises (SMEs). It analyzes the CSC of a German watermill company through interviews and observation. The study finds that SMEs primarily use informal, face-to-face communication for CSC, like discussions and open days, rather than formal reports. Informal tools are effective locally due to trust, while more formal methods are needed at a distance. Overall, SMEs do not require the formal CSC strategies of large firms.