Announcement of participation in the "Housing Creation Exhibition How's Festa 2022" on June 17 (Friday) and June 18 (Saturday), 2022.

The metal waterproof sky promenade has a track record of over 460,000 buildings in balcony waterproofing for 46 years. It requires no maintenance and can also be realized with wooden structures on the roof!

The Sky Promenade is a waterproofing method that does not require regular maintenance. While conventional waterproofing requires maintenance every 5 to 10 years, the Sky Promenade is essentially maintenance-free. (Please note that drain cleaning is required.) Additionally, due to partnerships with major insurance companies, it comes with a 10-year warranty for standard specifications and a 30-year warranty for high-grade specifications. In recent years, the adoption of this waterproofing method has rapidly increased not only for balconies but also for rooftops. **Features** - Passes non-combustibility certification (Non-combustibility certification NM-1981) - Reliable 10 and 30-year warranties - Strong against earthquakes - Quick installation due to dry construction methods - Suitable for large balconies and rooftops For more details, please contact us or download the catalog.

• Humidity control materials

Metal waterproofing methods essential for safely enjoying rooftop greenery and balcony living.

Our company proposes "OSORA Living," which transforms rooftops and balconies into relaxing spaces. The comfort of "OSORA Living" is supported by our unique metal waterproofing method, "Sky Promenade." This waterproofing method is designed for wooden houses, excelling in fire resistance and seismic performance, and achieving long-term maintenance-free status. It also comes with a waterproof guarantee of up to 30 years. It has a high repeat rate among construction companies, with over 500,000 completed projects. "OSORA Living" has surpassed 18,000 units as of April 2022. 【Features of Sky Promenade】 ■ Adopted in wooden non-residential buildings such as stores, daycare centers, kindergartens, and nursing homes ■ Suitable for single-story flat roofs with no entrances or exits ■ 10-year waterproof guarantee for standard specifications and 30-year guarantee for high-grade specifications ■ Obtained non-combustible certification from the Ministry of Land, Infrastructure, Transport and Tourism (Certification Number: NM-1981) ■ Also available is "Sky Promenade eco," which has high solar reflectance and heat insulation performance *For more details, please refer to the materials. Feel free to contact us with any inquiries.

• Coating film waterproofing material/permeable waterproofing material

We have a convenient lineup for everyday use! Let's enjoy life more with a lifestyle that includes a rooftop.

"Rooftop Girls" offers a rooftop where women can spend time more authentically. The containers for gardening and home vegetable gardens are designed in a smaller size that can be easily moved by women, and by raising the deck space slightly, it creates a spacious impression as if there is another area. With a flat construction, it is suitable for placing sofas and tables, allowing you to live your life as you wish, whether you invite mom friends for tea under the clear blue sky, have lunch with family, or enjoy reading leisurely by yourself during a break from housework. [Features] - Provides a rooftop where women can spend time more authentically - Containers are designed in a smaller size that can be easily moved by women - The deck space is slightly elevated - Artificial turf can also be used as a stretching space *For more details, please refer to the related link page or feel free to contact us.

• Wall and rooftop greenery

In addition to charging electric vehicles from homes, it is also possible to supply power from electric vehicles to homes. Domestic electric vehicles can be used as storage batteries!

Our company sells the "EV Power Station," which allows the electricity stored in electric vehicles (EVs) to be used as household power, and we provide information on the V2H system. By charging the EV at night when electricity rates are low and discharging it during the day when rates are high, it is possible to reduce electricity costs. Additionally, by effectively utilizing solar power, we can achieve a lifestyle that minimizes risks and allows for long-term peace of mind. Our company has experience in installing solar power systems for both single-family homes and large-scale projects, and we take responsibility for maintenance as well. If you have any questions regarding proposals or information for homeowners, including pricing and estimates, please feel free to contact us. 【Features】 ■ Reduces electricity costs through peak cutting ■ Incentive BCP through peak shifting ■ Social contribution through the utilization of electric vehicles ■ Emergency power outage measures (BCP) ■ Compatible with VPP (Virtual Power Plant) *For more details, please refer to the related links or feel free to contact us.

• Photovoltaic power generation system (solar system, energy-saving housing, electricity sales business)

Daitō Shikō Co., Ltd. will exhibit at the "26th Promotion EXPO Spring" held at Tokyo Big Sight from Wednesday, April 22, 2026. At the exhibition venue, we plan to showcase a variety of original goods, including support merchandise, fans, sticker books, replica tickets, and more. If you are looking for SP tools, promotional items, or novelties, please be sure to visit our booth.

The demonstration showcases a variety of AI solutions, including AI-equipped PCs, workstations, the Japanese facial AI avatar "Aine," digital assistants, the compact desktop "Dell Pro Max with GB10" (equipped with NVIDIA GB10), rack-mounted solutions, and conference audio equipment. Digital assistants are already being implemented across a wide range of fields, including finance, healthcare, government agencies, and local municipalities, with expanding applications in marketing, customer service, and operational efficiency. This exhibition provides a valuable opportunity to directly see how "Aine" can contribute to solving business challenges.

"Connecting technology and field knowledge to accelerate implementation" We provide a space to co-create "solutions that can be used from tomorrow" by merging real challenges from the field with cutting-edge digital technologies (spatial, ground, DX), going beyond mere technology demonstrations. 【Event Overview】 Date: June 5, 2026 (Friday) Main session 13:30–17:30 Networking event: 17:45–19:45 Format: Akihabara Hall (3 Kanda Neribeicho, Chiyoda-ku, Tokyo) or Zoom webinar Expected attendees: 200 people Speakers: International Kogyo Co., Ltd. / Texar Co., Ltd. / Just Co., Ltd. / Toshiba Lighting & Technology Corporation / Ground Network Holdings Co., Ltd. / Nihon University College of Science and Technology, Department of Architecture Special website for the conference:

During the event, many companies shared common challenges such as: ・ Increasing employees’ net income without raising base salary ・ Preventing turnover through better benefits ・ Reducing bank transfer and operational costs TwooCa combines digital payments and employee benefits to help companies achieve: ・Higher real disposable income for employees ・ Improved engagement ・ Reduced transfer fees and administrative costs All sessions and booths are still available during the replay period. Please take this opportunity to visit the TwooCa online booth. ◆Register here https://it.expo.it-trend.jp/key/fjbpth3r ◆Replay available until March 22 (JST) Watch anytime, online

Based on research by the British web consulting company Bowen Craggs, we will explain the key trends in corporate communication, focusing on best practices. ■ Recommended for: - Those involved in the operation of corporate websites, regardless of whether they manage global sites - Those interested in web trends of global companies - Web personnel of global companies * We kindly ask that individuals and companies in the same industry as ours refrain from applying. ■ Agenda: 1. Greetings 2. Introduction of Bowen Craggs and the trend report "Index Snapshot" 3. Review of last year's rankings and themes 4. Introduction of the latest trends for 2026 - Best practices and rankings for corporate sites and social media - Measures companies should take in the era of AI search, with specific examples - Trends in the use of social media, etc. 5. Introduction of the "Global Website Best Practices Survey" service 6. Q&A session * The content of the above agenda is subject to change without notice. Thank you for your understanding. * This is a re-run of the seminar held on January 22, 2026.