New Book 'The Job of an IR Professional' Published, Revealing Methods to Gain Trust from Capital Markets and Management, from 'One-Person IR' to Establishing an IR Department

Takara Printing Co., Ltd. (Head Office: Toshima-ku, Tokyo; President: Kouta Shirai), a service provider for IR and disclosure-related services within the TAKARA & CO (TSE Prime, Securities Code 7921) Group, is pleased to announce the publication of the specialized book 'The Job of an IR Professional' for IR personnel at listed companies.

[Published Book]

Book Title: 'The Job of an IR Professional'

Editor: Hikaru Kamiyama

Author: Satsuki Katagiri

Publication Date: July 3, 2026

Publisher: Chuo Keizai Sha, Inc.

Price: 4,000 yen (excluding tax)

Pages: 336 pages

1. About the Book 'The Job of an IR Professional'

This is an essential read for IR professionals who engage with investors and disclosure, offering practical know-how to master daily tasks and involve the entire company in disclosure.

It particularly focuses on supporting the 'one-person IR' setup, which is common in most Japanese listed companies, providing know-how based on diverse IR field experiences on how to establish a foothold and position within the company, methods to transition from one-person IR to building a team, and career development beyond that.

2. Announcement of Publication Commemorative Lecture

To commemorate the publication of this book, we will hold and stream a recorded version of a publication seminar.

In addition to lectures by the authors, we will invite speakers from the Tokyo Stock Exchange's Listing Department to propose solutions for strengthening IR activities and sustainability disclosures. For details and registration, please check below.

[Registration Page]

e-Disclosure Seminar 'The Job of an IR Professional' Special Publication Commemorative Event

Realistic Solutions for IR Strengthening Requests and Mandatory Sustainability Disclosure

https://takara-print.smktg.jp/public/seminar/view/5502

*Application Deadline: July 22, 2026, 9:00 AM

*Recorded Streaming Period: July 23, 2026 (Thu) 10:00 AM - August 6, 2026 (Thu) 5:00 PM

[Author Biographies]

Editor

Hikaru Kōyama

General Manager, Sales Planning Department, Takara Printing Co., Ltd.

Senior Manager, IR/Sustainability Research Office, Takara Printing D&IR Research Institute Inc.

After graduating from university, engaged in IR, public relations, and corporate planning practical work and management in companies of various industries and sizes, including Capcom, SoftBank Group, and Recruit Holdings.

Joined ExaWizards in 2021. After handling IPO preparations, led dialogue and disclosure as Head of IR and Head of Capital Market Strategy after listing. In 2023, developed an AI product specialized for IR operations as a new business, serving concurrently as head of sales, marketing, and business operations.

Joined Takara Printing Co., Ltd. in September 2024. Currently promotes planning and development of new services, sales, and marketing, while widely disseminating IR frameworks and philosophies based on approximately 20 years of practical experience through lectures and writing.

Author

Satsuki Katagiri

Director, Takara Printing D&IR Research Institute Inc.

Head of IR/Sustainability Research Office

Municipal Advisor, Higashimurayama City, Tokyo

Joined Takara Printing Co., Ltd. in 1992. After gaining experience in the production of corporate disclosure documents such as annual securities reports and notices of convocation, worked as an IR Director, responsible for planning and proposing IR/CSR support for companies, including shareholder reports, annual reports, and CSR reports. Also gained experience in sales department management, and in 2015 launched the ESG/Integrated Reporting Research Office to provide total support for corporate communications. Currently serves as Director of Takara Printing D&IR Research Institute Inc. and Head of the ESG/Integrated Reporting Research Office (currently IR/Sustainability Research Office), providing advisory and consulting services for all aspects of corporate communications centered on integrated thinking, as well as giving lectures and writing.

Additionally, since 2025, has been studying communication design at the Graduate School of Social Design, Department of Communication Design, exploring the potential of communication in corporate and local government organizations.