◾️Overview of New Features <Curled-up Detection Function> If a state of immobility continues due to poor health, it will be detected as "curled-up," and in addition to alerts from the wristband itself, an alert email will be sent to the work manager. <AI Advice Function> A weekly report comparing data collected from the wristband wearer over the past two weeks will be sent every week. AI-generated advice will also be provided. <Integration with On-site Chat "direct"> It is possible to push notifications of various alerts to the on-site chat "direct," which is widely used in construction sites. * An account for "direct" is required to receive notifications. * For more details about "direct," please refer to the website of L is B Co., Ltd. The implementation of these new features will further enhance the safety of on-site workers and improve the efficiency of safety management. For more details, please check the link provided.

We will be exhibiting at the "8th International Construction and Surveying Expo (CSPI-EXPO2026)" to be held from June 17 (Wednesday) to June 20 (Saturday), 2026, at Makuhari Messe. ■ Booth Number: 07-60 ■ Products Scheduled for Exhibition - Health Management Solution "GenVital LTE" - Rebar Inspection AR System "BAIAS" - Sleeve Inspection App "SLEEVY" - Virtual Sign Display System "VirtuaSign" *Please note that the exhibited products may be added or changed without notice before the event. On the day of the event, you will be able to see actual products, services, and demonstrations, so we encourage you to visit the venue. We sincerely look forward to your attendance.

We will be exhibiting at the "1st Extreme Heat Tech Osaka" to be held from May 13 (Wednesday) to May 15 (Friday), 2026, at Intex Osaka. <Exhibited Products> Health Management Solution "GenVital LTE" *Exhibited products may be added or changed without notice before the event. ■Booth Number: K1-17 On the day of the event, you will be able to see actual products, services, and demonstrations, so please take this opportunity to visit us at the venue. We sincerely look forward to your attendance.

We would like to inform you that the NETIS registration numbers for "Cloud Logger LTE" and the "Milmot Series (Milmot HD, Milmot REC, Milmot 360)" have been changed to "-VE." ■ Cloud Logger LTE New NETIS registration number: KT-220145-VE (Old NETIS registration number: KT-220145-A) The "Cloud Logger LTE" is a system that transmits various environmental measurement data to the cloud via LTE, allowing real-time monitoring of measurement conditions at the site from a distance using a computer or smartphone. ■ Milmot HD, Milmot REC, Milmot 360* New NETIS registration number: KT-220106-VE (Old NETIS registration number: KT-220106-A) *NETIS technology is applicable only when using solar power. The Milmot series (Milmot HD, Milmot REC, Milmot 360) is a cloud camera specifically designed for construction sites, enabling users to check the site conditions anytime through video or still images from a distance using a computer or smartphone. *For more details, please check the link.

In this case study, we have received cooperation from Obayashi Corporation and Sankyu Inc., leaders at the forefront of the construction and logistics industries, to introduce their specific initiatives regarding "early detection of heatstroke risk" and "ensuring worker safety." Additionally, we have published an interview article with Obayashi Corporation, who contributed to the development of "GenVital LTE," as a "development story." As heatstroke risk has become a social issue, we encourage everyone in companies working on improving on-site productivity and safety measures for workers to read this for insights. GRIFFY will continue to contribute to creating safer and more comfortable working environments through DX solutions, including "GenVital LTE." ◾️ Obayashi Corporation (case study) ◾️ Sankyu Inc. (case study) ◾️ Obayashi Corporation (development story) *Please check the link for more details on the article.

Starting from January 2026, we are pleased to announce that by linking the measurement data collected on the "Fieldroid Cloud" with the BIM/CIM cloud "KOLC+" provided by Cork Inc., it has become possible to centrally display measurement data summaries on the digital twin. (Examples) Measurement of various environmental data using Cloud Logger LTE Forecasting wind speed, rainfall, and heat index using Signroid 2 Temperature and humidity measurement during concrete curing using Ondroid Slope monitoring using Guraloid Displacement measurement using the shape displacement measurement system "G-Gauge" The data measured by the above services is sent to the cloud, enabling graph displays and alert email notifications. With the implementation of the data linkage function, it is now possible to visualize the latest measurement data from the Fieldroid Cloud on the digital twin constructed in "KOLC+". For more details, please check the content on the linked page.

We are pleased to announce that starting December 15, 2025, the rebar inspection AR system "BAIAS" will introduce a new feature called "Arc Measurement Mode," which allows for the inspection of the number and spacing of rebar in arc shapes during the construction of concrete caissons and bridge piers. As the first case of utilizing this new feature, rebar inspections using this functionality are scheduled to be conducted on the "Yamato Goshod Road Soga Viaduct (PD6) Substructure Work" (Client: Kinki Regional Development Bureau, Nara National Highway Office) being constructed by Muramoto Construction Co., Ltd. For more details about the functionality, please check the content on the linked page. ■ Overview of the Rebar Inspection AR System "BAIAS" BAIAS is a groundbreaking system that allows for easy rebar inspections of reinforced concrete structures to be conducted by a single person. Utilizing the LiDAR sensor and camera equipped on the iPad Pro, it accurately measures the number, diameter (thickness), and spacing of rebar. It complies with all measurement items specified in the guidelines set by the Ministry of Land, Infrastructure, Transport and Tourism. In April 2025, it was selected as a "Promoted Utilization Technology" by the Ministry of Land, Infrastructure, Transport and Tourism and boasts a track record of implementation in over 250 sites.

We are pleased to announce that our health management solution "GenVital LTE" has received the "Startup Encouragement Award" at the "2023 Infrastructure DX Awards" hosted by the Ministry of Land, Infrastructure, Transport and Tourism. This recognition comes just six months after its launch in May 2025, during which we have gained over 100 users and implemented more than 2,200 units, receiving high evaluations in terms of effectiveness, advancement, and dissemination. Details regarding the effectiveness, advancement, and dissemination of "GenVital LTE," which received high praise, can be found at the provided link. Currently, GRIFFY is considering additional features for GenVital LTE and exploring IoT service collaborations based on feedback from users. We will leverage this award as an opportunity to accelerate the improvement of product satisfaction and the expansion of our user base, further contributing to the realization of safe and efficient site management.

We are pleased to announce the development of the vehicle passage time prediction system "MS-VPP," which measures the speed of vehicles approaching construction sites using microwave sensors and informs the predicted passage time through signage and tablets. This system will be available to construction contractors starting in November 2025. ■Product Overview - "MS-VPP" detects vehicles approaching construction sites and measures their speed using microwave sensors, displaying the vehicle speed and the predicted passage time at specified locations on signage and tablets. It can also measure and display data for vehicles passing continuously. - The data control panel connected to the microwave sensor transmits the vehicle speed data and calculated passage prediction time via LTE. By utilizing microwave sensors, it enables accurate detection and speed measurement of vehicles even at night or in bad weather, and since data processing occurs on the receiving side without going through the cloud, information can be displayed without any time lag. - As a result, drivers of construction vehicles exiting from construction entrances and workers directing traffic can understand "how many seconds until a vehicle passes near the site entrance," thereby implementing safety measures in areas with poor visibility.

We are pleased to announce that starting from October 20, 2025, we will be adding new features, "Message Sending Function" and "IoT Integration Function," to our health management solution "GenVital LTE." "GenVital LTE" is a service that assesses the physical condition of on-site workers in four levels based on heart rate and location data collected from wristbands, as well as the heat index at the work site, and sends alert notifications to both the work manager and the workers themselves. With the addition of these new features, work managers will be able to send predefined or custom messages to the wristbands, allowing the wearers to receive notifications through sound and vibration, enabling quick and efficient work instructions and alerts. Additionally, by integrating with the cloud measurement service provided by GRIFFY, automatic notifications will be sent to the wearers when measurement values such as rainfall, wind speed, slope, noise/vibration, and dust concentration exceed warning levels. This will achieve complete automation of the work process, from data measurement to alerting on-site workers. This will further contribute to improving the safety of on-site workers and streamlining and reducing labor in site management.

We are pleased to announce that on September 30, 2025, we added new features "SOS Notification" and "Fall Notification" to our health management solution "GenVital LTE." "GenVital LTE" is a service that assesses the health condition of field workers in four stages based on heart rate and location data collected by a wristband, as well as the heat index at the worksite, and sends alert notifications to both the work manager and the worker themselves. With the addition of these new features, when a wristband wearer wants to report health issues, they can press a button on the wristband to send an alert notification to the work manager. Additionally, when the wristband detects that the wearer has fallen, it can automatically send an alert notification to the work manager. The work manager can quickly check the wearer's location information, as well as the status and time of any SOS signals or falls, through a dedicated cloud service.

The NETIS registration number for "Ondoroid" has been changed as follows: New NETIS registration number: KT-230101-VE Old NETIS registration number: KT-230101-A "Ondoroid" is a system that remotely manages temperature data from the surface and interior of concrete, as well as humidity data within curing sheets, allowing for effective curing management based on this data. Recently, the Ministry of Land, Infrastructure, Transport and Tourism conducted an evaluation of its effectiveness and assessed it as a technology superior to conventional methods in terms of "quality and workmanship" and "constructability." Please make use of it to improve quality management during concrete curing.

GRIFFY Co., Ltd. will be exhibiting at the "11th Heat Countermeasure Exhibition" held at Tokyo Big Sight. This exhibition is a specialized event focused on solving challenges related to heat. On the day of the event, you will be able to see actual products, services, and demonstrations, so please take this opportunity to visit the venue. We sincerely look forward to your attendance.

We are pleased to announce that "GenVital," a health management solution for on-site workers developed in collaboration with Obayashi Corporation, will begin operation in 2025, targeting thousands of workers primarily in civil engineering sites, following its implementation at construction sites managed by Obayashi Corporation starting in 2024. Analysis after the end of the 2024 season confirmed that the use of "GenVital" reduced the incidence rate of health issues to 0.1% (*1), and it has been decided that operations will continue in 2025. *1 According to a report from Obayashi Corporation, as of October 1, 2024, there were 3 cases of health issues among 3,000 people surveyed. Additionally, we plan to provide an improved version of "GenVital," called "GenVital LTE," at construction sites managed by Obayashi Corporation. For release information about "GenVital LTE," please check the related link on the page titled "Health Management Solution 'GenVital LTE' to be launched in May 2025." *GenVital is not a medical device and is not a product for preventing or diagnosing heat-related illnesses.

We are pleased to announce a major renewal of the rebar inspection AR system "BAIAS" on July 1, 2025. By refreshing the UI design and implementing updates that significantly enhance user experience while maintaining robust measurement functions, we aim to evolve into a more intuitive and user-friendly system, thereby improving user convenience and work efficiency. <Renewal Details> - New UI Design Significantly Enhancing Usability We have completely revamped the application's logo and the entire user interface (UI). With highly visible icons and an intuitive layout, we have created a design that allows even first-time users to operate smoothly without confusion. This supports rapid inspections on-site. - Efficient Data Management Functionality We have newly implemented the ability to create and edit storage locations for measurement data in the cloud. This allows the on-site iPad Pro to focus solely on measurement functions, enabling workers to concentrate on inspections. By providing a system where administrators can centrally manage data storage locations, we strengthen collaboration between the field and back office, significantly reducing the effort required for data management. *For details and the full text, please check the link.

We are pleased to announce that starting May 1, 2025, we will begin offering the health management solution "GenVital LTE." GRIFFY has been providing the health management solution "GenVital" for field workers since 2024, which collects workers' heart rate data via a wristband and transmits it to the cloud through a master and slave device. This time, we will change the wristband to the LTE-compatible "mSafety" device provided by Sony Network Communications Inc., enabling the collection of location data in addition to heart rate. This allows us to directly obtain workers' heart rate and location data without the need to install master and slave devices, regardless of the work location. With a simple configuration, we support safer and more efficient site management by understanding workers' real-time health and location information.

Our company will be exhibiting at the "Construction and Architecture DX EXPO 2025 Summer Tokyo (part of the Industrial DX Comprehensive Exhibition 2025 Summer Tokyo)" held at Tokyo Big Sight. At our booth, we plan to showcase our health management solution "GenVital LTE" and new products, so we invite you to visit us at the venue. We sincerely look forward to your attendance.

GRIFFY Co., Ltd. will be exhibiting at the "Hokkaido Civil Engineering and Architecture Future Technology Exhibition 2025" held at Access Sapporo. We plan to showcase our rebar inspection AR system "BAIAS," outdoor wireless transmission device "G-Wave," and virtual signage display system "Virtual Sign," among others. On the day of the event, you will be able to see actual products, as well as services and demonstrations, so please take this opportunity to visit the venue. We sincerely look forward to your attendance.

The virtual sign display system "VirtuaSign" has been made available starting April 16, 2025. It displays highly visible virtual signs at tunnel construction sites and nighttime construction sites, contributing to safety management. ◾️ Product Overview VirtuaSign is a system that projects pre-set signs from a high-brightness light source mounted on the main device, which are configured in advance on the cloud at the site office. By projecting bright and clear signs at tunnel construction sites and nighttime construction sites, it effectively informs site workers of restrictions and raises awareness. The main device is equipped with a communication terminal, allowing connections to the cloud via LTE, wired LAN, or Wi-Fi. It is also possible to project sensor information and surveillance camera footage installed at the construction site through the cloud. In this development, we collaborated with Casio Computer Co., Ltd. to conduct demonstration experiments at construction sites. Casio not only provided the dedicated embedded projection module "LH-200" but also offered technical support and cooperation to ensure durability, jointly developing and designing the protective housing to achieve a product with environmental performance suitable for construction sites.

GRIFFY Co., Ltd. will be exhibiting at the "International Construction and Surveying Expo (CSPI-EXPO2025)" held at Makuhari Messe. This is one of the largest exhibitions in Japan for professionals in the construction and surveying industry to gather for business negotiations, cutting-edge information gathering, and problem-solving. We plan to showcase our rebar inspection AR system "BAIAS," outdoor wireless transmission device "G-Wave," health management solution "GenVital," and virtual signage display system "VirtuSign." We sincerely look forward to your visit.

The rebar inspection AR system "BAIAS" was selected as a "Promoted Utilization Technology" in the technical information provision system "NETIS" by the Ministry of Land, Infrastructure, Transport and Tourism on April 14, 2025. With this selection, the NETIS registration number has been changed, and we would like to inform you of this update. New NETIS registration number: CB-230022-VE Old NETIS registration number: CB-230022-A This selection recognizes the excellent technological capabilities of BAIAS, and it is expected to promote its utilization in future public works and further dissemination through incentives for users.

We are pleased to announce that we will begin offering the generator operation monitoring system "G-Save," which enables notifications for the power ON/OFF of generators operating at construction sites and remote monitoring of generator operating conditions, starting in March 2025. ■ Overview of the Generator Operation Monitoring System "G-Save" Generators are widely used at construction sites for necessary lighting, drainage pumps, and the operation of monitoring equipment such as network cameras. However, running them unnecessarily can lead to increased environmental impact due to fuel waste and concerns about noise affecting the surrounding areas of construction sites. "G-Save" connects to the generator's outlet and collects the generator's operating status via mobile communication to a cloud server, allowing for email notifications of the generator's power ON/OFF status. It also collects data on the operating hours throughout the day and the cumulative operating time after pressing the switch included with the "G-Save" unit, making it accessible for remote viewing at any time. The system can be installed in a space-saving manner by adhering it to the generator housing with a powerful magnet. It is expected to help reduce environmental impact caused by forgetting to turn off the power and to facilitate efficient fuel replenishment for the generator.

- Strongly supporting productivity improvement at construction sites and disaster recovery sites outside communication network coverage - We are pleased to announce that we will begin renting equipment for the satellite communication service "Starlink Business," which provides a high-performance network environment in areas where building a communication environment is a challenge, starting in November 2024. "Starlink Business" is a service that offers the high-performance network environment of "Starlink" to corporate clients and local governments. It provides stable and highly reliable communication in mountainous areas, remote islands, and during natural disasters where establishing a communication environment is difficult. At GRIFFY, we will offer "Starlink Business" in conjunction with the outdoor wireless transmission device "G-Wave," enabling the expansion of wireless LAN usage areas according to customer needs through connections with built-in routers and wireless access points, allowing the use of high-speed satellite communication from "Starlink Business" in various outdoor scenarios. GRIFFY will continue to strongly support productivity improvement at construction sites and disaster recovery sites outside communication network coverage.

We are pleased to announce that we will begin offering the emergency earthquake alert response patrol light "Patroid-Shin," which receives emergency earthquake alerts in outdoor environments and immediately notifies the surroundings with a rotating light and sound to raise awareness of strong tremors and ensure the safety of on-site workers, as a dedicated package product starting in January 2025. When the Japan Meteorological Agency issues an emergency earthquake alert predicting a maximum seismic intensity of 5 lower or higher, the emergency earthquake alert will be immediately received via mobile phone operators in areas where seismic intensity of 4 or higher is expected. The emergency earthquake alert patrol light "Patroid-Shin" installed in the area will activate, illuminating the rotating light and announcing the issuance of the emergency earthquake alert audibly. Thanks to its solar power, multiple units can be installed in various locations, allowing information to be received even when a smartphone is not carried. For example, at construction sites, it enables safety measures such as lowering crane loads to safe locations and evacuating workers from unstable scaffolding, thereby helping to reduce damage.

We are pleased to announce that the outdoor wireless transmission device "G-Wave" was registered in the Ministry of Land, Infrastructure, Transport and Tourism's new technology information provision system "NETIS" on March 12, 2025. NETIS Registration Number: KT-240171-A Technology Name: Network Construction System for Communication Dead Zones "G-Wave" This technology builds a network environment using wireless LAN, starting from satellite communication broadband "Starlink Business" and mobile communication networks. It has been implemented in over 20 sites, including sediment control work and dam construction in mountainous areas, tunnel construction, agricultural pipelines, and sewer systems. By enabling the use of various services requiring communication at construction sites with communication dead zones, it achieves labor-saving in construction management and inspections, thereby improving construction efficiency, which is why it has been registered in NETIS.

Since being certified as an ICT supporter by the Tohoku Regional Development Bureau of the Ministry of Land, Infrastructure, Transport and Tourism in April 2024, GRIFFY has been recognized for its achievements in providing technical support and conducting training sessions to promote the effective use of ICT in construction projects, and has received a letter of appreciation for these efforts. We will continue to expand opportunities for the utilization of GRIFFY's technologies and products through technical support, contributing to the improvement of productivity in the construction industry in the Tohoku region.

On January 16, 2025, we added a function to the rebar inspection AR system "BAIAS" that allows the input of design slopes, which are reflected during measurement, and began providing this feature. Additionally, with the implementation of this function, we would like to inform you that we have confirmed compliance with the allowable error of ±5mm (comparison value for individual rebar spacing) as stipulated in the Ministry of Land, Infrastructure, Transport and Tourism's implementation guidelines through on-site verification. In July 2023, the Ministry of Land, Infrastructure, Transport and Tourism established the "Implementation Guidelines (Draft) for Rebar Shape Measurement Utilizing Digital Data," which requires an allowable error of ±5mm for slab work, necessitating high measurement performance. In slab work, it is often necessary to establish slopes in both vertical and horizontal directions, making it difficult to align the measurement surface with the rebar in such cases. Therefore, "BAIAS" has added a function to input the design values of the slope in advance and reflect them on the measurement surface. We also conducted on-site verification tests at Muramoto Construction Co., Ltd. and confirmed that the AR marker measurement mode of "BAIAS" meets the allowable error of ±5mm. Moving forward, "BAIAS" will continue to promote functional updates aimed at improving productivity on-site.

We are pleased to announce that the rebar inspection AR system "BAIAS," developed and provided for construction sites, received the Excellence Award at the "2024 Infrastructure DX Awards" hosted by the Ministry of Land, Infrastructure, Transport and Tourism on December 20, 2024. The introduction of "BAIAS" by Murakami Doken Development Industry Co., Ltd., headquartered in the Tokachi region of Hokkaido, was evaluated for its ability to conduct accurate measurements using a general-purpose device (iPad Pro), which is expected to significantly improve efficiency and productivity, leading to this award. *The rebar inspection AR system "BAIAS" is a jointly developed product with Muramoto Construction Co., Ltd. - Image 2: "2. Tokachi River Improvement Project, including the Nishishikari Embankment Protection Work" Source: Ministry of Land, Infrastructure, Transport and Tourism website "Award Initiative Overview (Construction/Business Division)" https://www.mlit.go.jp/report/press/content/001852737.pdf

GRIFFY Co., Ltd. will be exhibiting at the "Yukimirai 2025 in Joetsu" event, specifically at the "Yukimirai Exhibition" held at the Region Plaza Joetsu. In snowy regions, efforts are being made to overcome snow challenges through road snow removal, snow melting facilities, and the maintenance of snowmelt ditches, as well as initiatives to utilize the rich natural environment of snowy areas for community development. However, on the other hand, population decline and aging are serious issues. At GRIFFY, we are showcasing products that address the unique challenges of snowy regions! We warmly invite you to visit the venue during this opportunity. We look forward to seeing you there. 【Exhibited Products】 ■ Snow Depth Cloud Measurement System ■ Virtual Sign Display System "VirtuSign" *Please note that exhibited products may be added or changed without prior notice before the event.

GRIFFY is pleased to announce that it has participated as a certified technology partner in the SORACOM Partner Space (hereinafter referred to as "SPS"), a partner program of Soracom, Inc., as of December 3, 2024. Certified partners in SPS possess expertise and knowledge in the implementation of IoT and the utilization of SORACOM in their specialized fields. This program allows companies promoting IoT projects to find suitable partners from SPS when considering collaboration with external partners. Certified technology partners in SPS support the business transformation and innovation of companies utilizing IoT by providing software, SaaS, PaaS, management/security products, and services that integrate with the SORACOM platform. In light of this SPS certification, GRIFFY aims to promote DX support for the construction industry and strive for even better service delivery to customers facing various challenges.