About Us
At Sterling Stonex Private Limited, we craft more than stone — we shape legacies. A proud member of the KSR Group, Sterling Stonex carries decades of expertise in the natural stone industry, blending traditional craftsmanship with modern technology to deliver granite products of unmatched quality.
Founded in 1995, our journey began with a vision to take India’s finest granite to the world. What started as a single step has grown into a global enterprise supplying to over 20 countries across the USA, Europe, Middle East, and Asia-Pacific.
As a 100% Export Oriented Unit (EOU), we specialize in premium granite monuments, slabs, tiles, and bespoke architectural stonework. From quarry to customer, every stage of our operation is fully integrated — ensuring consistency, quality, and timely delivery.
Our five exclusive quarries and two state-of-the-art factories, equipped with advanced Italian and German machinery, allow us to process some of the world’s most sought-after granite varieties. Each product undergoes rigorous quality checks to meet ASTM and EN international standards, giving our clients confidence in precision, durability, and beauty that lasts for generations.
From memorials in Europe to architectural landmarks in the United States, Sterling Stonex has built a reputation as a trusted partner where quality cannot be compromised.
At the heart of our growth are three guiding principles:
Integrity
Ethical sourcing and sustainable operations
Innovation
Custom design solutions, CAD/CAM technology, and diverse finishes
Excellence
Timely delivery, flawless execution, and client-focused service
Leadership
Mr. K. Venkateswara Rao
Managing Director
The Managing Director and Partner of KSR Group is a Commerce Graduate with nearly four decades of invaluable project and management experience, complemented by exceptional business acumen. He has been successfully steering the Group’s businesses for several years, ensuring operational excellence and long-term sustainability. His visionary leadership and commitment to continuous growth have kept the Group dynamic and resilient in a competitive environment. He plays a pivotal role in crafting and executing strategic plans for the Company’s expansion across various sectors.
Mr. K. Srinivasa Rao
Executive Director
He is an engineering graduate and is the Executive Director and working partner of KSR Group. He has vast hands-on experience in project implementation and mining operations of the Group. Among the major projects that he has successfully handled are the Hydro Power Projects at Koldam and Uhl in Himachal Pradesh and granite mining in Andhra Pradesh and Tamilnadu. He has focused expertise in planning and management. He has involved in and continues to supervise the day-to-day operations of the Company and provides direction to its corporate strategy and vision.
Mr. K. Tirumala Rao
Director
He is an engineering graduate and is the Whole-time Director and Partner in KSR Group. He is the overall in-charge of 100% EOU Granite processing operations of the Group at Nalgonda District of Telangana and Srikakulam District of Andhra Pradesh. He possesses extensive knowledge and experience in processing of granite monuments/memorials and their marketing. He is a recognised thought leader on market strategy and related issues. He works and analyses a wide range of diverse factors that help develop market based business strategy.
Key Facts
Founded
1995 – Built on the legacy of the KSR Group
Business Model
100% Export Oriented Unit (EOU)
Global Reach
Supplying to 20+ countries in USA, Europe, Middle East, Australia & Asia-Pacific
Quarries
Exclusive ownership of 5 premium granite quarries across India
Factories
2 state-of-the-art, 100% export-oriented units near major ports for faster exports
Machinery
Advanced Italian & German stone processing equipment
Product Range
Monuments, slabs, tiles, architectural stonework, custom carvings
Workforce
370 Skilled artisans and engineers with decades of expertise
Certifications
ISO 9001, ASTM & EN Standard Compliance
Quality Assurance
At Sterling Stonex, quality is not a final checkpoint — it is embedded into every stage of our process.
- Block selection for consistency and strength
- Rigorous slab inspection for cracks and shade uniformity
- Precision cutting for dimensional accuracy
- Final polishing & export-grade packaging
Certifications & Compliance
ISO 9001
Certified quality management
CE Marking
European compliance (where applicable)
ASTM & EN Standards
Meeting US and EU technical requirements
Logistics & Packing
Every Sterling Stonex product is packed to protect its beauty and integrity during transit. We use export-grade wooden crates, reinforced with foam protection and moisture barriers to safeguard against damage.
Our proximity to major ports — Mumbai, Chennai, Vizag, and Krishnapatnam — allows for efficient, containerized shipping to clients worldwide, ensuring timely and secure deliveries.