History

TECHNOLOGY
FOR TOMORROW

Technology for a better future, made by SD FLEX

Company

OUR HISTORY

A History of Growth Built on
Relentless Technological Innovation

Building on the technology and trusted quality accumulated since our founding in 2004, we continue to grow safely and sustainably.

2025-Present

A New Leap Forward
2026
  • Adopted in Galaxy A series

  • Certified as a KOSHA Risk Assessment Workplace (4th time)

  • Adopted in Galaxy S / Foldable WPC (wireless charging)

  • Adopted in Company A phones

2025
  • Parent company changed: DuPont E&I Holding, Inc. → Qnity Electronics, Inc.

  • 20 years without accidents

  • Minister of Employment and Labor Award for Industrial Accident Prevention

  • Adopted in Galaxy S series

  • Adopted in Company M AI smart glasses

  • Adopted in SDI battery modules

2014-2024

Expansion and Growth
2024
  • MOU with Gumi Mental Health Welfare Center

  • Adopted in Samsung Display OLED modules

2023
  • Certified as a KOSHA Risk Assessment Workplace (3rd time)

  • Adopted in Galaxy Fold5 digitizer (bridge)

2022
  • Adopted in Galaxy Flip hinge

2021
  • Adopted in Galaxy Fold hinge

2020
  • Adopted in Company A MacBook

  • Certified as a KOSHA Risk Assessment Workplace (2nd time)

2019
  • Double Side FCCL Production Line Set Up

  • Adopted in Company A Antenna-M

2016
  • Certified as a KOSHA Risk Assessment Workplace (1st time)

2015
  • Adopted in Samsung Galaxy SUB-PBA and OLED-M

  • 10 years without accidents

  • Adopted in Galaxy S6, Note4 and iPhone 6S

2014
  • MOU with Gyeongbuk Workers' Health Center for the company doctor program

  • Parent company changed: Cheil Industries → Samsung SDI

  • Adopted in Galaxy S5, Alpha, Apple Watch and iPhone 6

2004-2013

Founding and Foundation
2013
  • ISO 14001 Environmental Management System certified

  • Certified as a KOSHA Risk Assessment Workplace

  • Patent registered for double-sided copper clad laminate manufacturing using casting and sputtering

  • Adopted in Galaxy S4, Note3 and iPhone 7S

2011
  • Approved by Samsung Display Division

  • Patents registered for double-sided laminates and EMI

2009
  • Approved by LG Electronics MC Division

2008
  • Approved by Samsung Electronics Mobile Division

  • ISO 9001:2000 certified

2006
  • Declared an accident-free workplace initiative

2005
  • Mass production of 2-layer FCCL began

2004
  • SD Flex founded (Samsung & DuPont JV)

  • Joint venture signing ceremony between Samsung (Cheil Industries) & DuPont