50 Years in Construction Chemicals & Industrial Sealing Solutions.

Engineering Reliability, Sealing the Future.

Since 1974, Dongsuh Industry has been the invisible strength behind the world’s most iconic landmarks and industrial infrastructures. From the heights of the Burj Khalifa to the technical complexity of Incheon International Airport, we provide the precision-engineered gaskets, seals, and adhesives that ensure safety, durability, and efficiency.

Where Decades of Manufacturing Expertise Meets Next-Generation Innovation.

Precision Engineering. Proven Performance.

 Our capability extends beyond standardized production; we specialize in custom-engineered Graphite Sealing technology and high-durability construction chemicals designed to withstand extreme pressures and environments.

A Half-Century of Integrity and Excellence

Building the Foundation of Global Infrastructure Since 1974

Founded on the principles of innovation and unwavering quality, Dongsuh Industry has spent over 50 years evolving from a local pioneer into a global cornerstone of the construction and industrial chemical industries. 

about us

Our legacy is built into the world’s most ambitious architectural achievements and high-performance industrial plants, powered by a philosophy that prioritizes customer trust and environmental responsibility.

our approach

A Half-Century of Integrity and Excellence

Building the Foundation of Global Infrastructure Since 1974

Founded on the principles of innovation and unwavering quality, Dongsuh Industry has spent over 50 years evolving from a local pioneer into a global cornerstone of the construction and industrial chemical industries. 

Inside Dongsuh: Stories of Growth and Innovation

A Window into Our Global Projects, Corporate Culture, and Industry Milestones.

Stay updated with the latest developments from Dongsuh Industry as we continue to shape the global construction and industrial landscape. Our media hub brings you closer to our journey—from the successful completion of landmark international projects to the internal celebrations of our dedicated workforce, such as the Long Service Awards.

50 Years of Resilience: Why the “Invisible Details” Matter in Global Infrastructure

A New Beginning: Dongsuh Industry Hosts the ‘2025 Long Service Awards’

Elevating Sealing Standards: Dongsuh Industry Patents Advanced Graphite Pressure Seal Ring Technology