
One material, mastered entirely — the story of how we became the UAE's sintered stone specialists.
Since 2009
While others sell every stone under the sun, we chose a different path. Since 2009, Riverstone has dedicated itself to a single material — sintered stone — and to perfecting everything about how it is selected, supplied and installed in the Emirates.
Compacted from pure minerals and fired at over 1200°C, sintered stone outperforms marble, granite and quartz — immune to heat, stains, scratches and the Gulf sun. It is the surface nature would have made, given another thousand years.
From our Sharjah facility, we hold local inventory and support architects, developers and homeowners from first sample to final polish.
The Material
Set a hot pan straight on it. Fired at 1200°C, it will not scorch, crack or discolour.
Harder than granite. Knives, keys and daily life leave no trace on its surface.
Near-zero porosity means coffee, wine, oil and acids simply wipe away. Food-safe by nature.
UV-stable colour that never fades — engineered for Gulf summers, indoors and out.
Certified to NSF/ANSI 51 for food contact. Non-porous and inert — nothing leaches into what you prepare or serve.
The performance of porcelain, the soul of natural marble — in slabs up to 20mm thick.
Request Material DatasheetOur Story in Motion
Riverstone is the UAE home of SINISO sintered stone — fired, finished and quality-controlled to a single global standard.
Company Profile
SINISO is the premium sintered-stone brand of New Jincheng Group, one of the world's top-ten ceramic manufacturers — and Riverstone is its UAE partner. Read the full profile below, or download it as a PDF.
The Technology
From raw powder to a fully-vitrified 1600 × 3200 mm slab — the SINISO product technology, finishes and performance, page by page.
Technical Characteristics
The full SINISO sintered stone data sheet — ISO 10545, EN 14411 and GB/T 44309-2024 results, from breaking strength and abrasion to lead and cadmium release.

"We don't sell slabs.— The Riverstone Promise
We deliver surfaces that outlive the buildings around them."