The ransomhouse ransomware group listed Kurogane Kasei Co. on its data leak site on 2025-10-23. Country: JP Sector: Manufacturing Domains named: www.kuroganekasei.com Claim as published on the leak site: Kurogane Kasei Co., Ltd. is a development-oriented Japanese chemical company specializing in organic synthesis and fine chemicals production. Its core activities include joint R&D projects, entrusted synthesis, and scalable production from gram-level prototypes to ton-scale manufacturing. The company caters to industries such as electronics, pharmaceuticals, and agrochemicals, leveraging advanced technologies like esterification and specialized equipment for dust-free, metal-free environments. With a workforce of about 193 employees, Kurogane Kasei positions itself as an 'all-round player' in the chemical sector, prioritizing customer satisfaction through rapid prototyping and innovative solutions.