The "Iran Stone Exhibition (IRSE)" is a prestigious international trade fair, specializing in natural stones, quarry machinery, and related equipment. This significant event was launched in 1997. The name IRSE represents the leading fair in the field of stone and stone processing in Iran. The IRSE takes place annually in Tehran. The organizer is Roshan Rooz Co., dedicated to presenting the latest technologies, products, and services in the natural stone sector. The main topics of the IRSE cover a wide range of natural stones, including marble, onyx, granite, and limestone, as well as the latest technologies in stone processing, including stone extraction and production machinery. The fair also provides insights into consumables and supplies such as resins, diamond saw blades, and polishing pads. The Iran Stone Exhibition is of particular importance for Tehran and Iran, as it highlights the rich diversity and extent of Iranian quarries and promotes the use of natural stone as an eco-friendly material. It serves as a platform for international trade and networking. Highlights of the fair include various events, such as stone conferences, B2B meetings, educational workshops, architecture and essay competitions, and the presentation of specialized books about the stone industry. These activities give the fair a dynamic and interactive character. The exhibitors come from various industries that deal with natural stone and related technologies. The main visitors are professionals from these areas, keen to learn about the latest developments and establish business relationships. On the whole the organisers welcomed on the 5 days of the fair, from 29. May to 02. June 2023, about 161 exhibitors and 15000 visitors on the Iran Stone Exhibition (IRSE) in Tehran. The Iran Stone Exhibition (IRSE) will take place on 4 days from Wednesday, 21. May to Saturday, 24. May 2025 in Tehran.