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Company

From Power Plants and Refineries to Aerospace,
we deliver advanced, sustainable engineering solutions across Energy, Chemical, Hydrogen, and Aviation.

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CEO's Message

Caleum CEO Choi Yeon-ji

Caleum is a manufacturing specialist advancing toward the future through technology innovation in plant and aerospace.


Founded in 2009 as a geothermal power equipment manufacturer, Caleum has grown into an eco-friendly energy specialist, supplying key components for petrochemical and LNG plants to global EPC companies at home and abroad.

Our core competitive strength lies in the design, manufacturing, and international project execution experience we have built through collaboration with global customers.

In 2026, to fully advance our two-track strategy of simultaneously developing green energy and aerospace & defense businesses, Caleum merged with Hana ITM, a specialist in aircraft engine components that had been operated as a subsidiary.

Former Hana ITM will become Caleum's Aerospace Division, supplying critical components to global aircraft engine manufacturers such as Safran and Hanwha Aerospace based on precision metal machining and heat treatment capabilities, further strengthening our technology and business competitiveness.

Built on our two business pillars plant and aerospace we will repay our customers' trust through continuous technology innovation and quality improvement. Through ESG management, we will also grow together with our customers, shareholders, employees, and local communities.

Thank you.

CEO, Caleum   Choi Yen-ji