Marusan-Ai Co., Ltd.

Kinako is roasted soybean flour, made by dry-roasting whole soybeans and milling to a fine powder. A staple of Japanese confectionery, commonly used to coat mochi, wagashi, and traditional New Year foods. Industrial applications include pastry topping, nutrition bar ingredients, and functional food applications.

Hatcho Miso is a mame miso (soybean-only miso, no rice or barley) fermented in large wooden barrels with river stones as weight, aged typically two years. Japan's GI system registered Hatcho Miso in 2024. Export applications include premium ramen, grilled meat glazes, and high-end Japanese restaurant supply chains.

Insoluble fibre and protein residue from soy-milk and tofu production. Long treated as feed/fertiliser in Japan, modern upcycling has converted okara into a high-fibre, high-protein functional food ingredient — used in plant-based meat alternatives, gluten-free baking, fibre-fortified supplements, and increasingly in cosmetic exfoliating formulations. Aichi, Niigata, and the broader tofu production heartland produce the largest volumes; specialty processors offer dried, defatted, and protein-isolate grades. Marketed as an upcycling success story aligning with sustainability and zero-waste retail trends.