Quality & Compliance
Sukabumi Green Stone Certifications
Certifications matter to B2B buyers vetting an overseas supplier from a distance — here's exactly what we hold, and what we don't yet, stated plainly.
ISO 9001:2015
Quality Management System certification
GBMH Certificate
Good Mining/Manufacturing practice certification
Certificate documents are available to serious buyers on request as part of our due-diligence process. We do not publish fabricated ratings, reviews or certifications — every credential listed here can be verified directly with our export team.
Technical Standards We Test Against
Beyond management-system certification, we reference recognized technical standards for stone performance: ASTM C97 (water absorption), ASTM C170 (compressive strength), and Indonesian SNI building material standards. Ask our export team for a current technical data sheet referencing your specific product and finish.
Third-Party Inspection
For buyers who require independent verification beyond our internal quality control, we support third-party pre-shipment inspection through recognized inspection bodies (such as SGS or Sucofindo) — arranged at the buyer's request and cost, or shared per your negotiated terms.
Certification & Sustainability FAQ
What is Sukabumi Green Stone made of?
Mineralogically it is composed primarily of plagioclase feldspar and pyroxene within an andesitic groundmass, with zeolite, chlorite and quartz present as secondary minerals that contribute to its green colouration and moderate porosity.
How can I verify a Sukabumi stone supplier is legitimate?
Request their Indonesian business registration number (NIB), ask for a video call showing the actual factory floor, request third-party inspection documentation for a recent shipment, and ask for at least one verifiable named client reference in your region.
Is Sukabumi Green Stone durable in outdoor climates?
Yes — it is used in tropical, desert and temperate outdoor climates worldwide. Its volcanic origin gives it good resistance to UV fading and thermal cycling, though extreme freeze-thaw climates should confirm frost-resistance specifications for their specific application.
What is the water absorption rate of Sukabumi Green Stone?
Water absorption is tested to ASTM C97 and figures are provided on our technical data sheet, which we recommend requesting for your specific finish and specification review — absorption varies slightly by finish and should be confirmed per batch for technical submittals.
Is Sukabumi Green Stone frost resistant?
Its dense andesite structure gives it reasonable frost tolerance compared to more porous stones, but for installations in climates with regular deep freeze-thaw cycling we recommend confirming frost-resistance test data against your local building code before specification.
What is the density of Sukabumi Green Stone?
As a dense andesitic volcanic stone, Sukabumi Green Stone falls within the typical bulk density range for quality andesite building stone; exact figures per batch are available on our technical data sheet on request.
Need Certificate Copies for Your Import Documentation?
We provide certificate documents directly to buyers as part of your quotation package.