[Chiiki Shimbunsha Co., Ltd.] Notice of 'Online Company Briefing for Individual Investors' to be held on Monday, April 13, 2026

Chiiki Shimbunsha Co., Ltd. (Headquarters: Yachiyo City, Chiba Prefecture; Representative Director and President: Katsutoshi Hosoya; Securities Code: 2164; hereinafter referred to as 'the Company') will hold an online company briefing for individual investors starting at 18:00 on Monday, April 13, 2026.

In this briefing, Representative Director and President Hosoya will take the stage to explain our new business model, strategies for utilizing our assets, and the progress of our growth strategies. This is a free seminar that requires no prior registration, so please feel free to join us.

1. Event Overview Chiiki Shimbunsha Co., Ltd. Online Company Briefing for Individual Investors Date & Time: Monday, April 13, 2026, from 18:00 to 19:00 (Doors open at 17:45) Venue: Online (No advance registration required) *The first 1,000 people will be able to enter the room from 17:45 on the day of the seminar. *Can be viewed from smartphones and PCs. Speaker: Katsutoshi Hosoya, Representative Director and President, Chiiki Shimbunsha Co., Ltd. Video Viewing URL: https://seminar2.monex.co.jp/public/seminar/view/57817

2. Briefing Details The Company publishes the free community information paper 'Chiiki Shimbun,' which is distributed to 1.74 million households every week in Chiba and Ibaraki prefectures, and has built unique assets that cannot be imitated by other companies. Currently, the Company is promoting a new growth strategy, the 'Strategic Plan,' based on this overwhelming physical distribution network and sales network. By utilizing the community infrastructure cultivated over 41 years of business and actively developing corporate alliances and capital and business tie-ups, we are expanding our business nationwide, starting from Chiba Prefecture.

In this briefing, the Representative Director will directly explain the progress of the new business model utilizing the Company's assets and the strategy for improving corporate value.

In particular, we will convey specific prospects and growth scenarios regarding the latest status of the following new businesses.

New Business Models (Progress Report) (1) Construction of a 'Regional Co-creation Platform' A 'non-selling' M&A model that promotes the growth support and business succession of startup companies. (2) Scholarship Repayment Support Type Human Resource Introduction Business A regional revitalization model that connects local companies and human resources under the keyword of 'living close to work.' (3) Marketing Strategy Utilizing Generative AI Patented Technology x Persona Data Creation (PCT Application Pending) Generative AI technology utilizing proprietary data born from the publication of free articles in the paper.

We will explain in detail the future growth potential of these business models. Although it is a busy time on a weekday, please be sure to join us.

*This briefing is not intended to recommend or solicit the trading of specific securities.

3. About the Assets of Chiiki Shimbunsha Co., Ltd. The Company develops comprehensive support businesses for information dissemination and sales promotion, centered on the publication of the community-based lifestyle information magazine 'Chiiki Shimbun,' and provides services to approximately 7,000 companies annually. 'Chiiki Shimbun,' published weekly mainly in Chiba Prefecture, is distributed to 1.74 million households by exclusive distributors. By continuing distribution for over 40 years since its founding, we have built 9 unparalleled assets.

Currently, the Company is focusing on initiatives that partially utilize these unique assets, and as a method of utilization, we are deploying two strategies: the 'Sea Power Strategy,' which bridges value from outside Chiba Prefecture to inside, and from inside the prefecture to outside, and the 'Land Power Strategy,' which aims to circulate value within the prefecture.

Click here for details on assets and the growth strategy 'Strategic Plan' ▼ https://ir.chiikinews.co.jp/wp/wp-content/uploads/2026/01/StrategicPlan11.pdf

Company Profile Company Name: Chiiki Shimbunsha Co., Ltd. (TSE Standard Securities Code 2164) Location: 5F VH Katsutadai Building, 1-11-16 Katsutadai Kita, Yachiyo City, Chiba Prefecture 276-0020 Representative: Katsutoshi Hosoya, Representative Director and President Established: August 28, 1984 URL: https://chiikinews.co.jp IR Site: https://ir.chiikinews.co.jp/

[Inquiries regarding this matter] Chiiki Shimbunsha Co., Ltd. Contact: Shogo Igarashi, Corporate Communication Office TEL: 047-485-1107 Mail: c.c@chiikinews.co.jp