Ichigo Office REIT Investment Receives Highest S Rank CASBEE Environmental Certification for the Ichigo Akihabara North Building

September 30, 2025

Issuer

2-6-1 Marunouchi, Chiyoda-ku, Tokyo

Representative: Takafumi Kagiyama, Executive Director https://www.ichigo-office.co.jp/en

Asset Management Company

Representative: Hiroshi Iwai, President

Inquiries: Masahiro Izumi, Head of Finance & Planning Tel: +81-3-4485-5231

Ichigo Office received an S rank, the highest CASBEE (Comprehensive Assessment System for Built Environment Efficiency) certification for the Ichigo Akihabara North Building.

1. Certification Overview

   Name	Ichigo Akihabara North Building
   Location Total Floor Area Structure Exterior Rank	6-15-12 Sotokanda, Chiyoda-ku, Tokyo
   	8,289.89m2
   	Steel/Reinforced Concrete, 8 Floors & 1 Basement
   	S Rank

2. CASBEE Assessment

   1. The building endeavors to reduce greenhouse gas emissions.

   2. Ichigo Office and Ichigo Investment Advisors work collaboratively with the building management company to set energy efficiency goals each year and generate ongoing efficiency improvements.

   3. Ichigo Office and Ichigo Investment Advisors work collaboratively with the building management company to also reduce water usage.

   4. The building's indoor environment meets Building Environmental Health Management Standards.

   5. The building employs environmentally conscious cleaning and sanitation practices.

   6. The building adheres to the Invasive Alien Species Act and a management policy for green spaces, thus promoting biodiversity.

   7. The building offers convenient access to and promotes the use of public transportation.

3. CASBEE Overview

   CASBEE evaluates and rates buildings' environmental performance based on their energy and resource efficiency, recycling activity, environmental load, and aesthetic appeal.

   CASBEE-certified buildings are scored for their environmental performance in five categories and receive a total environmental performance ranking (from highest to lowest): S, A, B+, B-.

   CASBEE Environmental Performance Evaluation Categories

   1. Energy/greenhouse gas

   2. Water

   3. Materials

   4. Biodiversity/sustainable site

   5. Indoor environment

      For a list of CASBEE-certified buildings in Japan, please refer to the URL below (Japanese only): https://www.ibec.or.jp/CASBEE/MP_certification/CASBEE_MP_certified_buld_list.htm

4. Ichigo Office's Environmental Initiatives

As a result of the above certifications, Ichigo Office has now received CASBEE certifications for 14 assets. This adds to Ichigo Office assets' environmental certifications which now totals to 27 certifications for 22 of its assets, accounting for 35.7% of its total leasable office area.

In line with sponsor Ichigo joining RE100, a global initiative to accelerate the transition of electricity used by businesses to 100% renewable energy, Ichigo Office completed transitioning all its assets to renewable electricity in August 2024.

As a specialized office REIT, Ichigo Office will continue to work to promote the environmental and energy efficiency and reduce the environmental impact of its office buildings.

1Goal setting date

2Target date

3Assuming Leasable Area does not change from the end of October 2024 fiscal period to the end of October 2029 fiscal period