Acompany Inc. (Acompany), headquartered in Naka-ku, Nagoya City, Aichi Prefecture, with Ryosuke Takahashi as Representative Director and CEO, is pleased to announce that Tsubasa Takahashi, who has been active as a Principal Researcher, has been appointed Chief Scientist and Executive Officer, VP of Research & Development, effective July 1, 2026. Takahashi is a researcher with world-class research achievements in AI security and privacy, and a proven track record of implementing privacy-enhancing technologies (PETs) in business. Since joining Acompany as a Principal Researcher in January 2026, he has led research and development and achieved remarkable results in project promotion. As an Executive Officer, he will oversee research and development strategy as a member of management, and will accelerate the development and social implementation of our "Confidential AI" at an even faster pace. Left: Tsubasa Takahashi, Chief Scientist and Executive Officer, VP of Research & Development; Right: Ryosuke Takahashi, Representative Director and CEO Profile ■ Career Joined NEC Corporation in 2010. Worked as a researcher at the Central Research Laboratory, engaging in R&D related to privacy-enhancing technologies and AI security. Studied abroad at Carnegie Mellon University in 2015. Joined LINE Corporation (now LINE YAHU, Inc.) as a Senior Researcher in 2018. Led the business implementation of federated learning and differential privacy, and R&D on the safety and reliability of large language models and image generation AI. Served as Senior Researcher at LINE YAHU Research Center from 2023, and Head of the AI Security & Privacy Promotion Office from 2024. Dispatched to SB Intuitions Inc. in the same year. Joined Turing Inc. in November 2024. Engaged in R&D related to visual language models, world models, and AI safety. Joined Acompany Inc. as Principal Researcher in January 2026, and appointed Chief Scientist and Executive Officer, VP of Research & Development in July. ■ Major