Keep it long, treasure it long.

One by one to places prone to humidity.

The company behind Sumihachi is Izumo Carbon Co., Ltd., founded in 2001. The representative, Mr. Ishitobi, witnessed the current situation where a large amount of wood waste is hardly recycled. To utilize this scientifically for moisture control in homes, the charcoal "Sumihachi" was created with the purpose of regulating humidity. Based on the idea of "solving moisture-related issues in daily life with the semi-permanent humidity control of charcoal," they continue to engage in manufacturing that not only ends with construction but also transforms the wood generated from demolition into resources that can benefit the next generation of living.