AI CROSS and KDDI to Co-host Special RCS Conference

## Press Release Information

AI CROSS Co., Ltd. (Minato-ku, Tokyo; Representative Director CEO: Noriko Harada; hereinafter "AI CROSS") will jointly host an invitation-only, offline conference with KDDI Corporation (Minato-ku, Tokyo; Representative Director CEO: Koji Matsuda; hereinafter "KDDI") at KDDI headquarters on Monday, May 18, 2026. This conference will unveil real-world information, from the latest market trends in RCS to success stories and new features, which can only be shared in a closed setting. A networking event for participants will also be held after the seminar.

### Conference Details and Positioning

This conference is an invitation-only event for companies that have already opened RCS official accounts and those currently using SMS. It will focus on practical information that can only be shared in a closed setting, including domestic and international market trends, actual performance data, and the latest features. The following content is planned:

### Disclosure of Practical Know-How

KDDI will present the latest domestic and international trends, as well as actual RCS utilization examples from within KDDI's own operations. In addition, the companies presenting will share real-world results, including actual distribution screens and effect data. Specific know-how that can be put into practice tomorrow will also be provided, such as examples of replacing postal DMs (flyers, postcards, etc., delivered to homes) by a major credit card company.

### "Zettai Reach! RCS" Latest Features and Future Outlook

AI CROSS will be the first to introduce the future outlook and upcoming new features of its service, "Zettai Reach! RCS."

### User Networking Event and Exclusive Campaign for Attendees

After the seminar, a networking event (social gathering) will be held where speakers and participants can meet. Light refreshments and drinks will be provided, offering an opportunity for direct dialogue with speakers and information exchange among participating companies. An exclusive campaign for attending companies is also planned.

* Please note that some content may be subject to change.

### Event Outline

* **Title**: [Invitation-Only] KDDI x AI CROSS Special RCS Conference
* **Date**: Monday, May 18, 2026
* **Venue**: KDDI Corporation Headquarters (2-21-1 Takanawa, Minato-ku, Tokyo, THE LINKPILLAR 1 NORTH)
* **Format**: Offline event *Invitation-only
* **Organizers**: KDDI Corporation / AI CROSS Corporation
* **Target Audience**: Companies that have opened RCS official accounts and companies using SMS

### Background: Evolution of SMS and Expectations for RCS

Even though smartphones have been widely adopted for a long time, SMS has become established as an important customer notification channel for businesses due to its high open rate and app-free deliverability. However, companies are beginning to feel the limitations of realizing richer customer experiences within the constraints of text-only communication, and the momentum for transitioning to next-generation communication methods is growing.

RCS (Rich Communication Services) addresses these challenges.

RCS, which allows for rich content such as images, videos, carousels, and buttons to be delivered on standard smartphone messaging apps, is being actively utilized in various industries such as e-commerce, finance, and transportation, particularly in Europe, the US, and Asia. In Japan, communication carriers are also developing their support, and the decision-making process for introducing RCS is accelerating as a customer touchpoint that is a step beyond SMS.

### Looking Ahead

AI CROSS is promoting the strengthening of its position in the corporate messaging market through strategic partnerships with domestic telecommunication carriers, including KDDI. By leveraging its customer base cultivated through SMS and accelerating the transition to RCS, AI CROSS aims to continuously expand the use of existing customers and create new revenue opportunities.

The domestic RCS market is at the entrance of full-scale adoption. By establishing itself as a pioneer in this growth phase, AI CROSS aims to enhance corporate value over the medium to long term. This conference is part of these strategic initiatives.

### [AI CROSS Co., Ltd.]

* **Company Name**: AI CROSS Co., Ltd.
* **Representative**: Noriko Harada, Representative Director CEO
* **Location**: Shiroyama Trust Tower 20F, 3-1, Toranomon 4-chome, Minato-ku, Tokyo
* **Established**: March 2015
* **Business Activities**: Smart AI Engagement Business
* **URL**: https://aicross.co.jp/

### [KDDI Corporation]

* **Company Name**: KDDI Corporation
* **Representative**: Koji Matsuda, Representative Director CEO
* **Location**: 2-21-1 Takanawa, Minato-ku, Tokyo, THE LINKPILLAR 1 NORTH
* **Established**: June 1984 (including predecessor companies)
* **Business Activities**: Telecommunications Business
* **URL**: https://www.kddi.com/corporate/

### [Contact for this Press Release]