N.K. Corporation is committed to solving social issues through manufacturing.
As part of this effort, we participated in an international project in Ethiopia and provided technical guidance on-site.
This initiative was implemented at the request of the relevant organizations.
Technical guidance provided by andu amet to the Ethiopia workshop in June 2025.
Technical Support for the UNFPA Ethiopia Project
Dec 2025
Redesigning materials that have outlived their usefulness
We have received many inquiries regarding material utilization, novelties, and commercialization, and NK Corporation has officially positioned this initiative as a business and will be launching it in earnest as the "NK Upcycling Program."
We welcome consultations regarding a wide range of materials that have reached the end of their useful life, such as seat fabrics and interior materials for equipment renewal or renovation, advertising signs and tarpaulins, exhibits, sample materials, excess inventory, and production offcuts.
It's fine even if you haven't yet decided on the type, amount, or method of use of the material.
We offer comprehensive support from commercialization considerations to prototyping and commercialization, using our expertise in sewing technology, prototype development, and mass production design.
We also support the planning and hosting of workshops and joint development programs for companies, educational institutions, and local governments, where participants can experience the commercialization process using actual materials.
We are always available to answer any inquiries regarding material utilization and joint product development.
Case studies
Furniture manufacturers
Leftover leather generated during sofa production
500 pouches , 2500 coasters (ongoing)
Transportation infrastructure
Tarpaulin sign waste 1,500 pencil cases
Cosmetics manufacturers
NK manufacturing-origin upcycled materials
Coin purses: 20,000 pieces
Home appliance manufacturers
NK manufacturing-origin upcycled materials
Coin purses (300 pieces)
Railway-related
Seat upholstery waste fabric → 2000 business card holders
For other product information, please contact us.
GREETING
NK is a Certified B Corporation
Cutting-edge digital technology and responsible manufacturing.
We use environmentally friendly materials and upcycled materials, and deliver world-class products from Tokyo, produced in factories that run on 100% renewable energy.
Based in Adachi Ward, Tokyo, NK specializes in ultra-precise digital cutting, high-quality sewing, and high-value-added finishing, and specializes in manufacturing leather products.
Since our founding in 2002, we have done business with domestic and international brands in a wide range of fields, from fashion accessories such as bags and wallets to car interiors and office supplies. We maintain high quality by honing our skills together with a diverse workforce, regardless of nationality or gender.
Furthermore, after three years of management improvement efforts, the company became the first in Japan's leather industry to receive B Corp certification in 2023. It is promoting environmentally and socially conscious management, including reducing the use of molds, minimizing waste from offcuts, and switching to 100% renewable energy.
Creating new value with world-class technology.
PHILOSOPHY
"Our management goal is to coexist with the natural environment and local communities, and to fulfill our responsibilities to them. This will be the basis for all our decision-making."
As a manufacturer that handles a variety of materials, including we at NK have a responsibility to sincerely address the environment, society, and biodiversity. Many challenges remain, but we are working hard every day to find solutions.
Now that globalization is progressing, we are constantly thinking about how we can give back to the natural environment and local communities by using our technology and experience.
We value the background of our products and business models, as well as the transparency of our supply chain, and create value not only for our own profits but also for all stakeholders involved. We believe that our mission at NK is to share our unique perspectives and practices both within and outside the industry, and to spread the benefits together.
WORKS
At NK, we use unconventional ideas and sophisticated processing technology to realize requests that other companies would not be able to fulfill, across a wide range of products such as bags, accessories, office supplies, and interior items, and we have a track record of being adopted by many well-known companies and brands.
Furthermore, our unique technology is used not only in consumer products, but also in situations that are difficult for people to see and in industrial materials used in commercial facilities.
We have been using CAD/CAM for 18 years, which has enabled us to reduce the amount of steel used for punching and achieve precise cutting. We have provided our technology to many brands to date .
OEM/ODM
We offer all our customers products that not only use environmentally friendly materials but also fulfill our accountability, including transparency in our supply chain.
FACTORY
Based on our company policy, we thoroughly manage our facilities as follows:
1. The entire facility is equipped with LED lighting, which consumes 50% less power and has a lifespan 40 times longer than incandescent lighting.
2. The entire facility is powered by 100% renewable energy, including domestic solar and wind power.
3. We are making every effort to minimize energy consumption throughout the company.
4. No water is used or disposed of in the process.
5. The exterior walls are designed to improve albeto (reflection of solar heat).
Conventional Press Cutter
Conventional Press Cutter
COMELZ Digital cutter CAD/CAM
Foil stamper
6 Sewing machines
Slicer
Work space
Work space
Notice for employees, visitors
In order to ensure that company policies and work regulations are strictly adhered to, NK Co., Ltd. places written notices at the entrance to the factory where they are easily visible to business owners, employees, and customers.
PROFILE
■ Company name
NK Co., Ltd.
■ Location
Head office and factory:
3-9-12 Higashiayase, Adachi-ku, Tokyo
Factory
1F, 5-24-4 Ayase, Adachi-ku, Tokyo
■ Establishment
June 18, 2009
■ Business Contents
Handbags, bags, small item manufacturing, processing, planning, manufacturing and wholesale / Novelty planning and manufacturing / CAD/CAM / Precision digital cutting / Manufacturing and processing consulting / Canvas product manufacturing
■ Business Partners
Toray Industries, Inc. / Toray Ultrasuede Marketing Co., Ltd. / Cassina IXC Co., Ltd. / Marubeni Fashion Link Co., Ltd. / Yamaplus Co., Ltd. / Takaaki Co., Ltd. / Turtle Co., Ltd. / Kurokawachi Design Office Co., Ltd. / Furanbo Co., Ltd. / Moriden Co., Ltd. / JUKI Corporation / HERALBONY Co., Ltd. /ALL Others
■ Bank
Tokyo Higashi Shinkin Bank Ayase Branch / Kameari Shinkin Bank Ayase Branch / Mizuho Bank Ayase Branch
MANAGEMENT
CEO ＆ CUTTING CREATOR
Kenji Nakamura
1971 Born in Adachi Ward, Tokyo.
1988 Graduated from a metropolitan high school.
1988 he joined his family's construction company and worked as a construction manager and group leader.
1995 he joined ZANBI Machine Co., Ltd. and worked in sales,For Leather Sewing machines and machine maintenance,Parts creation and processing, accounting, and as an officer.
2002 Became a sole proprietor, selling independent machines and supporting bag factories.
2009 Established NK Co., Ltd.
HISTORY
2001 Individual business opening
Started sales and maintenance business for industrial sewing machines
2002 Started handbag parts coloring business
2003 Started handbag parts cutting business
2004 Started special cutting and digital cutting business
2006 Began providing technical guidance for coloring and polishing to overseas factories of fashion accessory manufacturers
2007 Started the world's first car seat perforation processing for a major automobile manufacturer
Collaboration with a major US leather tanner for the automotive market
Providing applied technology to special digital cutting machine manufacturer COMELZ
2008 Start of special cutting business for amusement related products
2009 Established NK Co., Ltd.
2010 Expanded supply of special cutting products to the fashion industry, including designer brands
2011 Head office relocation
(New company building in Higashiayase, Adachi-ku, Tokyo)
2012 Technical guidance to a major overseas automobile seat manufacturer
2013 Increased orders from major textile manufacturers
2014 Started leather drawing process, established original manufacturing method
Increase orders from automobile manufacturers and electronic device manufacturers
2015 Guidance on perforation processing technology to a German special machinery manufacturer
2016 Established a sewing factory in Toyooka City, Hyogo Prefecture, assumed the position of representative, provided technical guidance, and started mass production
2017 Started special cutting processing for furniture for major interior brands
(Sofa core materials, desk pads, remnants upcycled product production, etc.)
2020: Focusing on supporting neighboring producers and communities in Adachi Ward due to the COVID19 whirlwind
2021 Started preparations for B-Corp certification
2022 Introduction of 100% renewable energy at the head office factory
2023 July B-Corp Certification
2025 June Technical guidance provided by andu amet to the Ethiopia workshop
Dec Technical support for the UNFPA Ethiopia project
NEWS TOPICS
HIGHSNOBIETY JAPAN 2024/12/28
Senken Newspaper 2023/10/26
Nikkei Newspaper 2023/9/30
WWD 2023/9/26
POLICY
■Company Philosophy
1. Pursue the improvement of sewing technology and quality that contributes to society.
1. Deepen the education required for a sustainable society and the global environment, and realize it through business.
1. Pursue physical and mental happiness, mental freedom, and personal freedom for employees, their families, children, and everyone involved with NK.
■ Practical General Rules
In putting our corporate philosophy into practice, we propose products and services that are suitable for the situations of various stakeholders, such as daily life, society, and the global environment, and use them as means to achieve better things. To that end, the following rules apply to management, technology and quality, dealing with business partners, and the work environment.
management
In order for our employees to be healthy in mind and body, and to manage the company in a flexible and flexible manner over the long term, we aim for management with diversity and a sense of balance, and build a system to prevent fraud and corruption. In order to maintain soundness, we will do our best to maintain transparency by actively engaging in mutual communication both inside and outside the company so as not to be bound by existing concepts and customs.
Technology and Quality Principles
With the aim of minimizing defects, shortening and optimizing working hours to realize a healthier work environment and the happiness of each individual, and solving the labor shortage, we are not only relying on craftsmen's handwork technology, but also mechanization. also actively work on Similarly, we aim to realize and contribute to local communities and the sewing industry.
Dealing with business partners (customers/suppliers, all business partners)
Proposing manufacturing that contributes to global environmental conservation and biodiversity. Proposing manufacturing that minimizes waste. We propose manufacturing that does not violate human rights. Confirm that the number of transactions falling under these proposals improves year by year.
workplace
Employees cooperate with each other and greet each other with a smile. When handling machinery and equipment, ensure safety first and communicate with each other. We do not tolerate discrimination of any kind, including race, origin, gender, and sexual orientation. We do not tolerate harassment of any kind.
■ Legal General Rules
All employees will thoroughly comply with laws and regulations, and we will also share our policy on legal compliance with our business partners. Harmonize with the sustainable development goals that the world is aiming for in terms of diversity, equality, and inclusiveness related to basic human rights. Support socially vulnerable people who are not served by government services such as national and local governments. In order to optimize the work environment within the company, we aim to create an environment where employees and contractors can express their opinions easily and where work styles and employee composition are diverse.
■ General Accounting Rules
In order to realize all-inclusive management while promoting the managerial mindset and ability development of each employee, we will appropriately share the financial results and disclosure with the management team and employees in a timely and accurate manner. On top of that, the following are the implementation points.
1.Understanding and sharing of major monthly financial results information
2. Balancing and improving the morals and work quality of accounting and finance staff
3. Implementation of budget and actual management by all employees and improvement of moral governance awareness
4. Return profits in a way that contributes to society, employees, and the global environment.
5. Build a process that prevents fraud
6.Profit and pay taxes steadily
■ Procurement general rules
In order to revitalize the neighborhood of NK, promote the economy, and improve the standard of living, we will basically procure from small and medium-sized companies in the neighborhood. If it is determined that you cannot comply, be sure to ask for instructions from your superior. As a general rule, this procurement ratio for the entire company is always 70% or more. At the time of procurement, confirm the following points. If confirmation cannot be made by the time of procurement, clarify the reason and ask for the superior's judgment. Set a deadline, draw a roadmap to achieve the goal, and check the progress to achieve it.
1. Confirmation of moral and ethical management (confirm whether there is forced labor for employees, inappropriate wages, and inappropriate employment such as child labor)
2. Confirmation of global environmental impact, confirmation of certification
3. Confirmation of quantitative indicators for reducing global environmental impact
4. Confirmation of biodiversity conservation and confirmation of certification
5. Confirmation of quantitative indicators for biodiversity conservation
6. Confirmation of how to contribute to society, confirmation of certification acquisition
7. Confirmation of quantitative indicators for social contribution
8. Check whether the above 1 to 7 are understood by upstream suppliers
9. Confirmation of independent capital management
10. Confirmation that you are not an anti-social organization
■ Whistleblowing
All employees, including directors and officers of NK, can contact the designated contact point at any time if they find a violation of the above, or a finding that seems to conflict with the law, not limited to the above. Whistleblowers will be properly screened, and whistleblowers and their cooperators in investigations will not be dismissed or treated unfavorably (disciplinary action, demotion, salary reduction, etc.) on the grounds of whistleblowing. If it becomes clear that the whistleblower, etc. has been treated unfairly, measures will be taken to remedy and recover.
■ Revised rules
Any revisions to the above policies shall be made with the written consent of shareholders, directors and employee representatives.