This presentation delves into the technical, commercial, and legal aspects of microalgae production by Biomasa Peninsular. It highlights the LIFE TL-BIOFER Project, focusing on using biofilm-grown microalgae in bio-based fertilizers, and the HORIZON 2020 BBI URBIOFIN project for producing amino acid-rich liquid biostimulants. Additionally, it explores current market trends and the legal framework shaping this emerging industry.