As the agent of Ferring pharmaceuticals, Darmanyab Darou sponsored one of the most scientific events in the country. Royan International Twin Congress comprised of two concurrent events, 20th Congress on Reproductive Biomedicine and 15th Congress on Stem Cell Biology and Technology, was held on 28-30 August 2019 in Razi International Conference Center. Around 1600 International and Iranian participants took part in the congress.