Salatiga (05/10) Si Nomi is an annual event organized by the Creative Economy Department of the Public Administration Student Association at Universitas Diponegoro. This activity aims to ignite the entrepreneurial spirit and creativity among Public Administration Students, while also instilling values of sustainability and environmental awareness. This year, Si Nomi will be held on Saturday, May 10, 2025, with the theme “Trash to Treasure: Empowered Entrepreneurship, Preserved Environment.” The activity location is at Tanasurga Restaurant, Cafe, Garden, and Less Waste Organic Store, located in Mangunsari, Salatiga City, Central Java. This activity was attended by 59 participants consisting of the Faculty of Social and Political Sciences, Universitas Diponegoro.

The main session of the event was led by representatives from GalGreen, a micro, small, and medium enterprise (MSME) focused on processing used cooking oil waste into economically valuable products such as soap and aromatherapy. In their presentation, the GalGreen team explained about used cooking oil waste and its management so that it can be transformed into new products like soap and aromatherapy candles. Thru sustainable innovation, GalGreen turns waste into a useful and environmentally friendly business opportunity. The participants were very entusiastic during this session and actively discussed and asked questions. The activity continued with a practical workshop on making products from used cooking oil, led directly by the GalGreen team. Participants were devided into groups to create soap and aromatherapy from used oil that had been hygienically processed. Each participant took home their crafts as a tangible experience in managing waste into marketable items.

After the workshop session, participants were taken on a tour of the Tanasurga area to see firsthand the implementation of ecotourism and organic waste management there. The event concluded with the presentation of souvenirs to GalGreen and Tanasurga as a token of appreciation, followed by a group photo session with all participants and organizers. Before returning to Semarang, all participants enjoyed lunch. The Si Nomi 2025 activity is a real reflection of how students can play a role as agents of change, not only in the fiels of entrepreneurship but also in preserving the environment. With the spirit of innovation, this activity opens participants’ perspectives to see waste as potential, not just a problem. The hope is that this activity will continue to inspire young generations to create sustainable businesses that have a positive impact on the wider community.