Iga Hwangto is a Korean brand specializing in the development, production, and installation of interior and building materials made with charcoal and natural loess. The company says it has worked in this field for more than 20 years, with a focus on nature-friendly product research and development. Its offerings include natural loess tiles, loess interior features, and heated products, as well as home, outdoor, and portable loess saunas and jjimjilbangs.

Iga Hwangto also provides sauna and interior construction services, creating wellness spaces for private homes, apartments, and community facilities. Its projects include custom-built loess sauna rooms, heated beds, and loess art walls. The brand additionally offers body-care therapy, including a lower-body-focused care service, and promotes private sauna installations for individual customers and business operators.

Through project examples, customer reviews, and video content, Iga Hwangto presents its products and completed installations, helping customers explore options for bringing loess-based relaxation and interior design into their spaces