DorniKa Sabz Knowledge Base Company was established in Mashhad in 2023 by experts in nanotechnology, chemistry, and materials science, with the goal of producing chemicals through environmentally friendly methods leveraging nanoscience. In 2023, the company joined the Science and Technology Park at Ferdowsi University of Mashhad. The company’s primary activities focus on recovering valuable materials from waste and industrial effluents to mitigate their harmful environmental impacts. Currently, Dornika Sabz is concentrating on recycling materials from industrial wastes, including those from electroplating, steelmaking, and leather industries. One of their most successful projects is the production of green chromium oxide nanoparticles from chrome plating waste, developed using an innovative and cost-effective method. This project was recognized as one of the top 25 national projects out of 2500 at the 13th edition of Iran’s International Innovation and Technology Exhibition “Inotex”.