The declared products are particleboards conforming to JIS A 5908, the Japanese Industrial Standard specifying the requirements for particleboard, and are available in four main product types: 13REG, 18REG, 13MR1, and 18MR1. In accordance with the Japanese Building Standards Act and environmental considerations, all products are classified as F☆☆☆☆ low-formaldehyde products. The products are available in thicknesses ranging from 9 mm to 30 mm. The 13REG and 18REG types are primarily used as substrate boards for decorative surface finishing with decorative sheets and are widely applied in housing equipment components such as system kitchens and storage furniture. The 13MR1 and 18MR1 types are primarily intended for use as subflooring panels in residential houses and condominiums.