Community-based Social Contribution Activities

Why SUMCO Addresses the Local Community

The SUMCO Group sees existing in harmony with the local community and contributing to the region as one of the corporate social responsibilities.
In SUMCO CSR Policy, the SUMCO Group declares that "SUMCO shall respect various cultures and histories, and shall interact with society and the local communities." We take into account local communities' expectations for SUMCO and focus on the following in particular, in an effort to be a company that can contribute to the local community as a good corporate citizen.

Activities aimed at the local environment, safety, and disaster prevention
Activities aimed at providing education, culture promotion and sports promotion to the local community
Activities to support persons with disabilities

Participation in Local Cleaning Activities and Environmental Conservation Initiatives

Clean-up activities on the grounds of the Chitose Industrial Complex

Forest managment activities in Zusayama

SUMCO’s Chitose Plant has been working to maintain a pleasant road environment for pedestrians by implementing a clean-up program on approximately 1.5 km of sidewalks along the main roads of the Chitose Industrial Complex where the plant is located. Plant members pick up empty cans and trash that have been discarded, as well as fallen leaves and other refuse.
In addition to cleanup activities along the major arterial roads in the industrial park as a member of the “Hachimanpara Corporate Council” made up of companies in the industrial park, SUMCO's Yonezawa Plant also participates in conservation and maintenance activities such as forest thinning and fertilization in Zusayama, Bansei-cho, Yonezawa City, which is located near the plant. The forest management in Zusayama is being carried out through the "Yamagata Bond Forest" agreement between SUMCO, Yamagata Prefecture and the local territorial group, Zusayama Ward Assembly.
SUMCO’s Kyushu Factory supported the conservation activities of the horseshoe crab, the endangered species Class I, which inhabits the Makishima area of Imari City, Saga Prefecture. Conservation activities are being conducted at the “Imari Bay horseshoe crab breeding area,” which was designated a national natural monument in 2015, and continue to protect this precious biological resource that is in danger of extinction.
At the Nagasaki Plant of SUMCO TECHXIV Corporation, many employees and their families participated in the cleanup activities along the coast of Omura Bay in April 2024.
At the Miyazaki Plant of SUMCO TECHXIV Corporation, as part of our biodiversity conservation efforts, we plant broadleaf trees and other species every year in Tsubakiyama Forest Park, engaging in activities to conserve native plant species.
SUMCO Technology Corporation takes part in cleanup operations four times a year along nearby municipal roads and sidewalks, and also engages in cleanup activities within the industrial park where its plant is located. Furthermore, SUMCO Technology Corporation participates annually in the Edogawa Clean Campaign, held every May and organized by the Edogawa River Office of the Ministry of Land, Infrastructure, Transport and Tourism and 13 other municipalities around Noda City, as a member of the Southern Plant Liaison Council. The activities include collecting discarded cans and bottles, etc. and performing cleanup activities on the riverbed, embankments and side ditches along the Edogawa River.
At High-Purity Silicon Corporation, the Suzuka Manufacturing Division located in the Amana area of Suzuka City participates in the annual community beautification activity "Clean Town Amana" held every June. In 2024, 53 employees participated.
SUMCO Taiwan Technology Corporation conducted a coastal cleanup activity at Hsinchu City Kanhai Park under the guidance of the Hsinchu City Government Environmental Protection Bureau in November 2024.
SUMCO Phoenix Corporation (USA) regularly conducts community cleaning activities called "Litter Patrol." Litter Patrol is an initiative that employees voluntarily conduct patrols around the factory premises and collect trash, with many employees participating each time.

Donation ceremony to the horseshoe crab conservation organization (2022)

Coastal cleanup activities along Omura Bay

International Coastal Cleanup at Taiwan

Cleanup activities in the U.S. (Litter Patrol)

Greening Initiatives

At the Chitose Plant, in June each year, we enter the "Flower-Filled Contest" hosted by Chitose City's greening promotion foundation (Chitose Environment and Greenery Foundation) and plant colorful flowers in the green belt on roads around the plant, aiming environmental beautification.
At the SUMCO Support Corporation^*, we conduct "Flower Project" activities, including the voluntary creation of flower beds and the planting of flower seedlings grown from seeds, at our Kyushu Factory and the SUMCO Nursery School Imari. These efforts bring joy to visitors, employees in the surrounding areas of the company, and nursery school children.

*SUMCO Support Corporation is a special subsidiary company of SUMCO that was established with the purpose of employing persons with disabilities.

High-Purity Silicon Corporation conducts a volunteer activity called the “Flower Planting Team” every May, where the local community and companies, including our own, collaborate to clean and plant flowers along the Shiohama Kaido (street), which serves as a commuting route for the surrounding businesses, including ours.

Greening promotion activities at the Chitose Plant

Flower Project activities by SUMCO Support Corporation "Flower Project" activities by SUMCO Support Corporation

Participation in Emergency Drills at Welfare Institutions

Emergency drill at a welfare institution

At the Nagasaki Plant of SUMCO TECHXIV Corporation, we have organized an external rescue team, and joint rescue drills under the guidance of members of the Omura Fire Department are conducted every year to prepare the team for fire disasters at nearby welfare institutions.

Collaboration with Special Needs Schools

Work experience training

Since 2023, SUMCO Support Corporation has been registered as a Saga Prefectural Special Needs School Employment Supporter Company, regularly hosting workplace tours for students and accepting work experience training.
In 2024, the company accepted eight interns. In November, 2024, we were invited to Imari Special Needs School to give a career guidance lecture, where we spoke to first-year high school students at the school about the mindset and attitude expected of working adults. We will continue to expand our collaboration and cooperation with special needs schools, aiming to further enhance employment support.

Educational Activities in Local Communities

Semiconductor seminar

In regions where SUMCO operates production sites, we engage with universities, technical colleges, and other educational institutions by offering guest lectures and plant tours. As of the end of 2024, we have also donated exhibits of silicon single crystals and silicon wafers to a total of six such institutions, providing students with opportunities to learn about the manufacturing technologies of silicon wafers, the most essential foundational material in semiconductors.
At the Nagasaki Plant of SUMCO TECHXIV Corporation as well, we have maintained relationships with local high schools and universities since the establishment of the plant. In response to requests from educational institutions, we conduct lectures on semiconductors and offer plant tours, and we also donate exhibits of silicon single crystals and silicon wafers. In fiscal year 2024, we conducted two semiconductor lectures and four plant tours.
At the Miyazaki Plant of SUMCO TECHXIV Corporation, we exhibited at a semiconductor seminar held in November, 2024, organized by the Miyazaki Prefecture / Miyazaki Semiconductor-related Industry Human Resource Development Consortium. The seminar was held as an opportunity to introduce topics such as “how semiconductors are made” and “how semiconductors are used in everyday life” to local residents. Many visitors, primarily elementary and junior high school students, attended the event, which provided them with an opportunity to develop an interest in semiconductors and silicon wafers.

Each year, PT. SUMCO Indonesia works with local high schools to operate apprenticeship programs that run for approximately 3 months. These programs allow students to experience the company’s workplace, providing them with an opportunity for exploration toward the development of their future careers.

Apprenticeship Program

Participation and Sponsorship of Sports Events

SUMCO participates in and sponsors local sports events. The SUMCO Kyushu Factory co-sponsors the IMARI HALF-MARATHON every year.
In the 2025 event, over 3,000 participants from around Japan entered and ran through the early spring Imari Road.
Additionally, the SUMCO Imari Road Relay Race Team from the Kyushu Factory took part in the 77th Tozai Matsuura Relay Race Competition (sponsored by Saga Shimbun Co., Ltd.) held on February 2, 2025. The team narrowly missed achieving a second consecutive victory and finished in second place. This Tozai Matsuura Relay Race Competition is an event with a long tradition that contributes to the revitalization of the region by attracting numerous teams from the local community and workplaces.
The Nagasaki Plant of SUMCO TECHXIV Corporation also actively sponsors the organization and operation of local sports events.
Kenta Okawachi, a member of the SUMCO track and field team at the Kyushu Factory, delivered an outstanding performance at the SAGA2024 JAPAN GAMES & National Sports Festival for People with a Disability, held in October 2024. He won the 800m race in the Intellectual Disability Boys’ Division and the 4×100m mixed relay in the Intellectual Disability Division, and placed second in the 1500m race in the Intellectual Disability Boys’ Division.
The six-player softball team from SUMCO Technology Corporation participated in the 2nd Six-Player Softball Tournament, hosted by the Softball Association of Noda City, which has declared itself a City of Well-being, Sports, and Culture. The team finished as the runner-up in the General Division. This tournament is an event where local junior high school students, community members, seniors, universities, and companies collaborate to contribute to regional exchange through sports.

Activities with Non-Profit Organizations, etc.

SUMCO donates total amount of 610,000 yen to Seacare and the Japan Heart Foundation, in support of the work done by these NPOs. Furthermore, we also donate to other organizations such as the Little Women Project, in support of their activities.
SUMCO’s Chitose Plant and Kyushu Factory provide emergency food stock, water, and other supplies to the Food Bank Network Mottainaiwa Chitose and Food Bank Saga, respectively. We will continue our efforts to support the activities. Furthermore, the plant has entered into “Collaboration Agreement on Promotion of Cancer Prevention Awareness” with Chitose City, aimed at promoting awareness and outreach efforts regarding cancer screening encouragement and cancer prevention. We remain committed to collaborating to advance these activities.
SUMCO Phoenix Corporation (USA) donated to "Arizona Gakuen School," which supports Japanese language education for the children of expatriates working for Japanese companies expanding into Arizona. The donation was used to cover the operational costs of school events. In addition, the company donated to the Japanese Friendship Garden of Phoenix “Rohoen” in Arizona. The donation was used to cover the operational costs of events that offer opportunities to experience Japanese culture.
SUMCO Europe Sales Plc has a positive impact on the local community by way of helping the activities of local charity organizations through donations. In 2024, the company participated in the activities of the non-profit organization “Refugee Network International," which provides housing, food, clothing, and other essential supplies to people living on the streets of London. To support its activities, the company also donated £3,600. On top of that, each employee registered with the "OnHand" application, which contributes to environmental conservation by carrying out designated activities, and completed a variety of environmental and social activities. In fiscal year 2024, these activities via OnHand resulted in the planting of 1,254 trees.
Furthermore, the company offset approximately 190,000 kg of CO₂ emissions generated by business travel through the activities of the non-profit organization “Atmosfair,” which provides funding for various projects aimed at reducing and removing CO₂ emissions worldwide.

Donation of emergency water supplies to Food Bank Saga

Moon-viewing event at “Rohoen” in Phoenix, Arizona, USA

Charitable activities in the UK

Contribution to Society through R&D Activities

SUMCO is a leading supplier of high-quality silicon wafers for power semiconductors, contributing to reducing emissions of CO₂, which is GHG. We are actively engaged in joint research with Kyushu Institute of Technology, renowned for its research in power semiconductors, as well as participating in industry-government- academia collaboration projects focusing on power semiconductors. As a result, SUMCO is advancing the high-quality improvement of wafers while leveraging the achievements and knowledge obtained through research and development activities with various companies, universities, and research institutions. We are contributing to the resolution of social challenges such as preventing global warming and utilizing electricity effectively through proactive industry-government-academia collaboration activities aimed at further improving low-carbon and energy-saving technologies.

Regional Revitalization and Community Support Activities

Each year at the Uesugi Snow Lantern Festival, a famous winter festival that takes place in Yonezawa, SUMCO's Yonezawa Plant produces snow lanterns, a winter tradition in Yonezawa, in an effort to vitalize the local area.
In order to bring excitement to local events as a company that has established business sites in Imari City, SUMCO's Kyushu Factory participates yearly in the Imari Autumn Festival - Imari Dance in All, and collaborates with other activities, as a means of contributing to local revitalization.
Additionally, SUMCO’s JSQ Division supports activities of the “Barajima Kanto Group,” which is located in Barajima, Akita and headed by a SUMCO Employee. The group participates by performing in the Akita Kanto Festival every year, where they put on energetic performances.
High-Purity Silicon Corporation collaborated with neighboring companies and the local residents’ association to organize a Tateboshi event, where parents and children experienced the traditional fishing method known as Tateboshi. The company deepened its interaction with participating local residents.
PT. SUMCO Indonesia participates in the Religious Activity Program during Eid al-Adha Holiday^* every year and provides food assistance to the neighboring indigent, deepening its interaction with local residents around the plant. The company also places importance on maintaining relationships with the families of deceased employees and actively engages in local contribution activities such as support activities for orphans every year.