Engineering Solutions
for a Sustainable Future
PT. Quana Raya Shakatama (QRST) is a solutions company committed to driving a low carbon future by combining engineering excellence, data intelligence, and sustainability expertise to create measurable value for industries and society.
OUR VISION
To be a trusted sustainability partner recognized for our integrity, innovation, and impact in creating a better future for industries and the planet.
OUR MISSION
- Deliver practical and innovative solutions for sustainability and carbon management.
- Empower industries with accurate data, engineering, and knowledge.
- Build long-term value through collaboration, integrity, and continuous improvement.
OUR CORE VALUES
Integrity
We uphold honesty, transparency, and professional ethics.
Collaboration
We believe the best impact comes from strong partnership.
Innovation
We continuously learn, adapt, and create better solutions.
Impact
We focus on measurable value for people and planet.
Built for Today.
Committed for Tomorrow.
QRST was established with a long-term purpose: to help industries transition toward low carbon operations through reliable engineering services, accurate carbon accounting, and practical solutions.
We combine technical expertise, industry experience, and data-driven approach to deliver solutions that are not only compliant, but also create real business value and long-term impact.
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Industry-Focused Approach
Solutions tailored to real operational needs.
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End-to-End Capability
From measurement, analysis, to implementation.
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Quality You Can Rely On
Accurate, accountable, and standard-based.
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Long-Term Partnership
We grow together with your sustainability goals.
PROFESSIONAL EXPERTISE
A team of experienced professionals with multidisciplinary capabilities.
DATA & TECHNOLOGY
Leveraging data, digital tools, and technology for accurate and actionable insights.
TRUST & RELIABILITY
We build trust through integrity, quality, and consistent performance.
SUSTAINABLE IMPACT
We are committed to creating positive impact for business, environment, and society.
Foundation
Established with a clear purpose: driving sustainable value for industries.
Building Capability
Developing expert teams, strengthening methodologies, and expanding services.
Expanding Impact
Launching Carbontalk.id and Carbontalk Academy to empower knowledge and awareness.
Sustainable Future
Continuing innovation and collaboration for a better world.
Passionate. Competent.
Purpose-Driven.
Our team brings together a diverse background in engineering, environment, data, and management with one shared mission — to deliver meaningful solutions and create lasting impact.
- We respect the environment and future generations.
- We deliver solutions with professional integrity.
- We innovate for continuous improvement.
- We create value that lasts.
Expert Team
Experience
Solutions
Sustainability
Partnership