PRIMAS Co., Ltd. Joins PCA Corporation Group (Listed on Tokyo Stock Exchange Prime Market: Securities Code 9629) Through Share Acquisition by KEC Co., Ltd.

PRIMAS Co., Ltd. (Headquarters: Shinjuku-ku, Tokyo; Representative Director: Shohei Suzuki; hereinafter "the Company") announces that as of April 1, 2026, it has become a member of the PCA Corporation (listed on the Tokyo Stock Exchange Prime Market: Securities Code 9629; hereinafter "PCA") Group through the acquisition of its shares by KEC Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; Representative Director: Junichi Shinozaki; hereinafter "KEC"). Through this transaction, the Company will establish a higher quality and more stable service provision system under the management foundation of a listed company group.

■ Background

In recent years, the back-office domain of companies has seen an increasing demand for high-level expertise due to the advancement of DX, while chronic talent shortages have become a serious issue. Particularly in the finance and accounting fields, securing immediate-impact talent has become difficult, and the need for external resources has rapidly expanded. Under the mission of "increasing the fluidity of finance and accounting talent and supporting corporate growth," the Company has contributed to strengthening the management foundations of numerous companies by providing freelance talent introduction and BPO services. Furthermore, we have a track record of supporting public interest corporations such as academic societies and various organizations, and we strive to provide continuous value through supporting the establishment of highly specialized accounting and operational systems.

Meanwhile, KEC and its parent company, PCA, have supported the promotion of DX in Japanese companies by providing business software, primarily for accounting. Through this share acquisition, we will establish an "integrated back-office support system" that combines software with human resources and BPO, contributing to improved corporate productivity and sustainable growth.

■ Future Developments

Through this transaction, we will integrate the PCA Group's technology with our human resources and BPO functions to promote the following initiatives:

• Strengthening the service provision system backed by the reliability of a listed company group

• Expanding BPO and human resource services to the PCA Group's customer base

• Realizing comprehensive back-office support from accounting software implementation to operational support

• Enhancing BPO services for public interest corporations and strengthening specialized systems

• Advancing DX support in the finance and accounting domain

Particularly in the public interest corporation domain, the ongoing reform of the public interest corporation system and the corresponding transition to new public interest corporation accounting standards are urgent tasks for each corporation. By combining PCA's system infrastructure with PRIMAS's highly specialized human resources and operational know-how, we will contribute to the smooth transition of corporations to new standards and the resolution of industry-specific challenges, supporting the establishment of sustainable operational systems.

◾️ Comments

Junichi Shinozaki, Representative Director, KEC Co., Ltd.

"We believe that PRIMAS's highly specialized human resource network and BPO know-how will significantly expand the value provided by our group. At a time when responding to new accounting standards due to the public interest corporation system reform is an urgent task, strengthening the support system in this area is a socially significant initiative, and we position it as one of our future growth drivers. By providing end-to-end support, from system provision to specialized practical assistance, we will strongly support our customers' transformations."

Shohei Suzuki, Representative Director, PRIMAS Co., Ltd.

"We have now transitioned to a new growth stage as a member of the PCA Group. Under the management foundation of a listed company group, we will further strengthen the finance and accounting talent network and practical know-how that we have cultivated, and through collaboration with the PCA Group, we will promote the advancement and expansion of back-office support, especially in the public interest corporation domain, and drive sustainable value creation."

◾️ Company Overview

KEC Co., Ltd.

Location: PCA Building 6F, 1-2-21 Fujimi, Chiyoda-ku, Tokyo

Representative Director: Junichi Shinozaki

Business Activities: Provision of business support services in the back-office domain, implementation and operation support for accounting and business systems, etc.

URL : https://www.kec-sp.com/

PRIMAS Co., Ltd.

Location: ST Building 502, 8-5-4 Nishi-Shinjuku, Shinjuku-ku, Tokyo

Representative Director: Shohei Suzuki

Business Activities: BPO and consulting services in the finance and accounting domain, freelance talent matching and agent services

URL : https://primas.co.jp/

■ Contact for this matter

PRIMAS Co., Ltd.
Public Relations: Masato Ota
Email：info@primas.co.jp

Hours: Weekdays 10:00〜18:00

URL：https://primas.co.jp/