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Corporate Philosophy


Pursuing happiness of all our members, we bring safety and humanity development with advanced technologies.

Core Value

Employee Happiness

Physical and spiritual happiness through a valuable work-life balance.

Exceed customer expectation

Customer impression beyond satisfaction Everlasting partnership driven to trust and loyalty

Challenge and Creativity

Indomitable spirit, overcoming fear of failure. Passion of creation based on infinite challenge.

Business Ethics

Value of ethical business for fair competition. Legal and clean business is short-cut to success.

Respecting Human beings

Human-centric management that respects diversity, autonomy, trust, communication, and collaboration.


Global leading company to create customer value, providing total solution through fastening and precise forming technology.


Company foundation
Infrastructure of technology
  • 1996
    Technical Cooperation with KAMAX Germany (terminated in 2004)
  • 1995
    100PPM certified by HMC
  • 1989
    R&D Center established
  • 1983
    Sunil Machinery established, hived-off from SK group
  • 1976
    SK Machinery established
Stabilization of quality
and management
  • 2009
    Sunil M-Tech in Gimhae (Korea), M&A DY Hynix
  • 2008
    JVC with SFS Swiss in Tianjin, China
  • 2005
    National productivity grand-prix awarded by president of Korean government
    Tianjin plant established(China)
  • 2003
    Company name changed to Sunil Dyfas Corp.
  • 2000
    Jincheon plant established(Korea)
Expansion of
global capability
  • 2018
    Silver tower medal awarded by Korean government
  • 2017
    Best Technology Company awarded by Korean gov.
  • 2016
    Grand-prix of managemen innovation by GSM institute
  • 2015
    Tower of export award – USD 70 Million
    Nantong plant founded (China)
    Mexico plant founded
  • 2012
    HRD excellence certified by Korean government
Industry leading of future
automotive technology
  • 2023
    40th anniversary
  • 2022
    Quality Excellence Company by GM - 11 years consecutive
  • 2020
    Hub bolt supply to big 3 - 1st case in Asia

Certifications and Awards

  • 2023.09 Best Human Resources Developer: Best HRD

  • 2022.12 Quality Excellence Supplier – 11 years consecutive - awarded by GM

  • 2020.01Supplier Of Year awarded by Hyundai Motor Company

  • 2018.12Energy Commendation company awarded by Ministry of industry and trade.

  • 2018.10Excellent Quality Management awarded by Korean government.

  • 2018.05Awarded Silver Tower medal awarded by Korean government.

  • 2018.01Designated Hyundai Motor Company's Partner in the shared growth sector.

  • 2017.12Youth-Friendly Small Business selected by the Ministry of Employment and Labor.

  • 2017.09Top Company of Human Resource Development certified.

  • 2017.09Top Company of Human Resource Development certified.

  • 2017.05Technological Innovation’ awarded Small and Medium Enterprise Business administration.

  • 2016.11Innovative Management awarded by Global Standard management.

  • 2016.05Commendation Award from Ministry of Science, ICT and Future Planning.

  • 2015.12U$70 Million export tower awarded by Korean government.

  • 2014.03Prime Minister’s Commendation Award for model of Chamber of commerce and industry.

  • 2012.09Top company of HR development certified.

  • 2011.10Top Company of Productivity for respecting human dignity.

  • 2010.10Comprehensive Grand Prize for small and medium-sized businesses in Chungcheongbuk-do.

  • 2006.09National Productivity Award for Labor Management by Korea Productivity Center.

  • 2005.09Grand Prize for National Productivity awarded by President of Korea.

  • 2004.09National Productivity Award for Future Management by Korea Productivity Center.

CEO Greetings

Since company foundation in 1983, Sunil Dyfas Corporation has grown and developed into a trusted and contributing company to society by delivering quality products and excellent customer service.

In order to meet the increasing demands of digitalization and high productivity era in 21st century, We have focused on our overall competitiveness for customer satisfaction, maintaining perfect quality, and providing world-class core technology through never-ending management innovation as global fastening components company.

In addition, we promise to fulfil company’s social responsibility by respect for human being, and clean management.

We express our deep appreciation for your support, and we will strive to continue being a top-leading company of fasteners and cold-forging components through unparalleled innovation and development of new technology and new products.

Thank you.

Ji Hoon, Kim



Domestic Network


Jincheon Factory

Sunil M-tec

Ulsan Business

Changwon Business

Global Network

Sunil SFS intec

SPM Auto Parts

Customer Network