Notice Concerning GRESB Assessment Results

This translation of the original Japanese notice is provided solely for information purposes. Should there be any discrepancy between this translation and the Japanese original, the latter shall prevail.

October 2, 2025

REIT Issuer: Daiwa Office Investment Corporation (Stock Code No.: 8976) Representative: Toshisuke Tanaka, Executive Director

Asset Manager: Daiwa Real Estate Asset Management Co. Ltd. Representative: Yoshiki Nishigaki, President and Representative Director

Inquiries to: Kentaro Azumi, General Manager, Acquisition and Asset Management Division (Tel: +81-3-6215-9649)

Daiwa Office Investment Corporation (the "Investment Corporation") hereby announces that the Investment Corporation received "4 Stars" and "Green Star" in the GRESB Real Estate Assessment conducted in 2025, as well as the highest "A Level" for the GRESB Public Disclosure.

1. Overview of GRESB

   GRESB is an annual benchmarking assessment to measure ESG (Environmental, Social and Governance) integration of real estate companies and funds, as well as the name of organization which runs the assessment. It was founded in 2009 by a group of major European pension funds who played leading roles in launching Principles for Responsible Investment (PRI).

   Currently, about 150 Investor Members use GRESB data for their investment decision-making and engagement with investees, and several institutions from Japan including Government Pension Investment Fund (GPIF) utilize GRESB Assessment results. In 2025, 2,382 listed or private real estate companies/funds participated in GRESB Real Estate Assessment.

   For details of the GRESB, please refer to the website (https://gresb.com/).

2. Assessment results

   In the 2025 GRESB Real Estate Assessment, the Investment Corporation received a "4 Stars" in GRESB Rating, which is based on GRESB Overall Score and its quintile position relative to global participants. It also won a "Green Star" designation for the 14th consecutive year by obtaining a score higher than 50% of the points allocated to each component; "Management Component" that evaluates policies and organizational structure for ESG promotion, and "Performance Component" that assesses environmental performance and tenant engagement of properties owned.

   
   
   

   Furthermore, the Investment Corporation also received the highest "A Level" for the GRESB Public Disclosure, which assess the width of ESG disclosure.

   
   
   
3. Future Measures

The Investment Corporation, based on the recognition that emphasizing ESG contributes to the enhancement of the Investment Corporation's medium- to long-term corporate value, will continue to press ahead with environmental and energy-saving measures at the portfolio properties as well as initiatives with consideration for various social demands.

For the Investment Corporation's ESG policy, please refer to the following.

*The Investment Corporation's policy regarding ESG: https://www.daiwa-office.co.jp/en/esg/index.html

- End-

*Website URL of the Investment Corporation: https://www.daiwa-office.co.jp/en/index.html