ABOUT US

ABOUT US

Empowering Excellence

We Lead Global Change As We Advance Technology

We Lead Global Change As We Advance Technology

ABOUT US

Empowering Excellence

We Lead Global Change As We Advance Technology

Who We Are

Committed to building a sustainable

and high-performance future

Committed to building a sustainable and high-performance future

Committed to building a sustainable

and high-performance future

OCI TerraSus, formerly known as OCI M, is a Malaysia-based subsidiary of OCI Holdings Company Ltd., a global leader in green energy and advanced chemical materials headquartered in Seoul, South Korea…

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OCI TerraSus, formerly known as OCI M, is a Malaysia-based subsidiary of OCI Holdings Company Ltd., a global leader in green energy and advanced chemical materials headquartered in Seoul, South Korea…

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Clean hydro energy

Clean hydro energy

Our polysilicon is produced sustainably through clean hydropower energy.

Our polysilicon is produced sustainably through clean hydropower energy.

Green Catalyst

Green Catalyst

Polysilicon is essential in the solar value chain, crucial for producing solar photovoltaic (PV) systems.

Polysilicon is essential in the solar value chain, crucial for producing solar photovoltaic (PV) systems.

What We Do

Delivering high-purity polysilicon

for a cleaner, smarter world

Delivering high-purity polysilicon for a cleaner, smarter world

Delivering high-purity polysilicon

for a cleaner, smarter world

10-Nine

10-Nine

High-purity solar

grade polysilicon

OCI TerraSus produces ultra-high-purity polysilicon used in solar photovoltaic panels. Our manufacturing facility in Samalaju Industrial Park is powered primarily by clean renewable hydropower, ensuring a stable and sustainable supply chain…

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Polysilicon Manufacturing Process

Polysilicon Manufacturing Process

Polysilicon Manufacturing Process

Message by CEO

For nearly a decade, OCI TerraSus has remained committed to building a sustainable and future-ready industrial ecosystem. Leveraging the strengths of our group, we continue to explore opportunities in the renewable energy sector and expand into advanced materials.


Our growth in semiconductor-grade polysilicon, chemicals and industries which support the global energy transition has been enabled by forward-looking policies, strategic global partnerships and operational and sustainability-driven expertise of our team. These advantages position us to meet our customers' evolving needs across the global markets…

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Jaeyong Yang

President | Chief Executive Officer

Jaeyong Yang


President
Chief Executive Officer

Jaeyong Yang

President | Chief Executive Officer

Mission

Mission

Drive a sustainable and greener future for humanity through cutting-edge, innovative solutions.

Drive a sustainable and greener future for humanity through cutting-edge, innovative solutions.

Vision

Vision

Provide sustainable solutions one step ahead in renewable energy and advanced chemicals for a better life.

Provide sustainable solutions one step ahead in renewable energy and advanced chemicals for a better life.

Values

Trust, Resilience, Safety + Excellence

Trust, Resilience, Safety + Excellence

Trust, Resilience, Safety + Excellence

Business Strategies

Driving resilient, responsible growth

through global partnerships & local impact

Driving resilient, responsible growth through global partnerships & local impact

Driving resilient, responsible growth through global partnerships & local impact

Our growth is anchored in robust governance, proactive stakeholder engagement, and a clear commitment to transparency and accountability. We align our operations with global standards to create long-term value for our partners and stakeholders…

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  • Future Driven Materials

    Delivering high-purity polysilicon for the global semiconductor and solar markets through world-class manufacturing in Malaysia.

    Green Energy Integration

    Harnessing Sarawak’s hydropower to realize a clean, low-carbon production ecosystem.

    Transparent Governance & Partnerships

    Building joint ventures with trusted global and local partners to pursue long-term growth with shared responsibility.

    Community Engagement

    Supporting local talent, education, and economic development as a responsible investor.

    Agile Risk Management

    Responding proactively to global market changes, trade dynamics, and environmental regulations.

Future Driven Materials

Delivering high-purity polysilicon for the global semiconductor and solar markets through world-class manufacturing in Malaysia.

Green Energy Integration

Harnessing Sarawak’s hydropower to realize a clean, low-carbon production ecosystem.

Transparent Governance & Partnerships

Building joint ventures with trusted global and local partners to pursue long-term growth with shared responsibility.

Community Engagement

Supporting local talent, education, and economic development as a responsible investor.

Agile Risk Management

Responding proactively to global market changes, trade dynamics, and environmental regulations.

Three Pillars of Excellence

Central to our strategy are three foundational pillars that define our identity and drive our performance

Central to our strategy are three foundational pillars that define our identity and drive our performance

Central to our strategy are three foundational pillars that define our identity and drive our performance

  • Center of Excellence

    Operational Excellence

    Empowering Excellence

Center of Excellence

Operational Excellence

Empowering Excellence

Corporate Governance

Corporate Governance

Policies

Policies

Policies

Quality Policy 2025

Quality Policy
2025

Quality Policy 2025

Environmental Policy 2025

Environmental Policy
2025

Environmental Policy 2025

Occupational Safety & Health Policy 2025

Occupational Safety &
Health Policy 2025

Occupational Safety & Health Policy 2025

Drug Alcohol & Substance Abuse Policy 2025

Drug Alcohol & Substance
Abuse Policy 2025

Drug Alcohol & Substance Abuse Policy 2025

Awards

Awards

Recognition and awards

Prestigious recognition

and awards

Recognition and awards

Bintulu Sustainability Awards (BiSA) 2024

Platinum Award | Large Enterprise Category

Bintulu Sustainability Awards (BiSA) 2024

Platinum Award | Large Enterprise Category

11th Premier of Sarawak Environmental Award (PSEA) 2023/2024

Gold Award | Large Enterprise/GLC Category

11th Premier of Sarawak Environmental Award (PSEA) 2023/2024

Gold Award | Large Enterprise/GLC Category