Certifications & Honors & Honors
Building Long-Term Trust on International Standards
Every certificate, every accreditation, every honor is a milestone answer after 27+ years of focused natural-stone work at HENGSHENG MARBLE S&T CO. LIMITED. We build our compliance framework around global authorities — ISO, CE, GREENGUARD, NSF/ANSI — covering quarrying, processing and project delivery as a fully traceable system. These credentials are not decorations; they are the entry tickets into 4,200+ long-term project partnerships worldwide.
Six Major Certifications · End-to-End Traceability
From quarry exploration to project delivery, every step is validated against the corresponding international standard. The following are the authoritative credentials HENGSHENG MARBLE S&T CO. LIMITED has obtained across its full product line. Original scans, annual surveillance reports and verification numbers are available upon request.
Quality Management System
End-to-end quality control covering quarry input, processing, finished-product inspection and outbound acceptance. Certifying bodies include BSI / SGS; annual surveillance audits during the validity period.
Environmental Management System
Quarry-to-factory environmental management: dust, wastewater, waste and energy consumption are quantified and controlled under the ISO 14001 framework, with annual third-party monitoring and system audits.
EU Construction Compliance
Full compliance with the EU Construction Products Regulation (CPR). Physical performance, chemical release and mechanical strength are verified against EN standards — the mandatory entry credential for the EU market and major European-funded projects.
Low-VOC Gold Certification
UL GREENGUARD Gold is one of the strictest indoor-air-quality certifications globally, ensuring stone VOC emissions stay within health-protective thresholds for sensitive spaces such as schools, hospitals and offices.
Food-Contact Material Safety
For kitchen counters, dining counters and food-prep surfaces. NSF tests heavy-metal migration, leachables and surface microbiological indicators per ANSI 51 before issuance.
Occupational Health & Safety
Covers occupational health and safety at quarries and processing bases: annual occupational health check-ups, ongoing PPE iteration and emergency drills safeguard every team member worldwide.
Industry Associations · Strategic Partnerships · Media Recognition
We have built long-term cooperation with leading global bodies in architectural design, materials engineering and geological sciences. The list below highlights representative partnerships and media recognition; the complete strategic-partnership roster is available on the Partnerships page.
Carrara Quarries, Italy
Signed a 10-year exclusive strategic agreement with Carrara Marmi S.p.A. (one of Italy's largest marble-mining groups in the Carrara region) for an annual supply of 50,000 m³ of premium Carrara white marble blocks — locking in the world's finest white marble resources at the source.
China Stone Material Association
A council-member company of the China Stone Material Association, HENGSHENG MARBLE S&T CO. LIMITED participates deeply in industry standards, quality-classification systems and industrial-policy research, jointly promoting natural stone adoption in green buildings.
Hong Kong Institute of Architects
A long-term partner providing local registered architects with stone samples, technical parameters, processing know-how and project casework — supporting material selection and detail decisions during the building-design phase.
Hong Kong Green Building Council
Active in the Council's green-building-material assessment and case-study research. Multiple HENGSHENG MARBLE S&T CO. LIMITED projects have been included in the Council's annual case library, providing empirical evidence for local green-building ratings.
Ministry of Natural Resources Key Laboratory
Industry–academia–research collaboration with a key laboratory under China's Ministry of Natural Resources — joint research on stone radionuclide limits, weathering mechanisms and sustainable mining models.
Leading International Architecture Schools
Joint research and scholarship programs with Politecnico di Milano, Tsinghua's School of Architecture, and HKU's Department of Architecture — investing in next-generation architectural-design talent.
Selected Public Coverage
Selected public coverage of HENGSHENG MARBLE S&T CO. LIMITED and our benchmark projects. Full versions of related articles are available under News & Insights and the Library.
- Hong Kong Economic Times: "Hong Kong Stone Company Deepens ASEAN Footprint — Annual Supply of 50,000 m³ of Carrara White Blocks" (2026)
- Architectural Digest: "HENGSHENG's Quiet Luxury: How a Hong Kong Stone House Became Asia's Most Trusted Marble Source" (2025)
- China Stone Network: "From 4,200 Projects to a Single Quarry: HENGSHENG MARBLE S&T CO. LIMITED's Full-Chain Practice" (2025)
- HKTDC Trade Touch: "The Hong Kong Path to Cross-Border E-Commerce for Natural Stone" feature (2024)
- Ming Pao: "The Second Generation's Slow Craft: 27 Years of Hong Kong Stone-Making" (2024)
Certification × Product-Line Matrix
See at a glance how the six certifications cover every supplied product line — tender documents can cite the corresponding certificate numbers per product line.
| Product Line | ISO 9001 | ISO 14001 | ISO 45001 | CE | GREENGUARD Gold | NSF/ANSI 51 |
|---|---|---|---|---|---|---|
| Slabs / Cut-to-size | ✓ | ✓ | ✓ | ✓ | ✓ | — |
| Curtain-wall panels | ✓ | ✓ | ✓ | ✓ | ✓ | — |
| Countertops / Vanities | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Shaped / medallion components | ✓ | ✓ | ✓ | ✓ | ✓ | — |
| Mosaics / mouldings | ✓ | ✓ | ✓ | ✓ | ✓ | — |
Certification & Honours Timeline
Founded in Hong Kong
HENGSHENG MARBLE S&T CO. LIMITED registered in Hong Kong, based in the core Nathan Road business district, launching imported-stone supply.
First ISO 9001 Certification
Quality management system certified to ISO 9001 — among the earlier Hong Kong stone firms with systematic quality control.
ISO 14001 Environmental System
Environmental management certification granted; factory water-recycling and offcut-recovery systems commissioned in the same year.
CE & GREENGUARD Gold
EU CE construction compliance and GREENGUARD Gold low-emission certification secured, opening high-end European and American project channels.
ISO 45001 + NSF/ANSI 51
Occupational health & safety and food-contact safety certifications passed in the same year, completing full product-line safety coverage.
10-Year Carrara Exclusive
Ten-year exclusive supply agreement signed with the Carrara quarry district — block-supply stability now among the industry's strongest.
Certification FAQ
For tenders and compliance filings we provide stamped copies; originals are available for on-site inspection or video verification. Every certificate can be authenticated on the issuing body's website by number.
GREENGUARD Gold certifies low indoor emissions — critical for schools, healthcare, hotel guestrooms and other sensitive spaces. LEED and WELL projects can claim indoor-air-quality credits directly with the certificate.
NSF/ANSI 51 is the food-contact material safety certification, covering all stone surfaces that touch food directly — kitchen counters, bars and dining tops — citable for hotel F&B areas and premium residential kitchens.
The three ISO systems undergo annual surveillance audits with three-year recertification; CE and GREENGUARD Gold are reviewed yearly. A dedicated owner tracks the audit calendar — coverage has never lapsed.
Need Certificate Copies or Compliance Advice?
Tendering authorities, owners and design teams that need original ISO / CE / GREENGUARD certificates — or region-specific compliance guidance — can connect directly with our compliance team.