About Us

About RTS

Crafted by nature, perfected by precision, our slate delivers uncompromising strength and durability. Meticulously split from solid blocks, each piece boasts a smooth, fine grained surface with subtle longitudinal texture—naturally free from reactive minerals and fully compliant with BS EN 12326 (A1/S1/T1/W1 certified). Rigorous third-party testing confirms exceptional performance, even under extreme climatic stress.


Traceable Quality from Quarry to Roof Sourced exclusively from a single, trusted quarry and processed at our dedicated facility, every slate is palletized to the highest standards: shrink-wrapped, BS EN-certified, and traceability-coded for seamless logistics.

Nature’s Artistry, Built to Last

A testament to natural beauty, each slate features slight tonal variations in color and texture—most visible in sunlight. Over time, they develop a graceful patina, harmonizing with local weather conditions.


Pro Tips for Flawless Installation:

Quality Assurance: Cross-check shipments against our “Quick Quality Checklist” to guarantee premium-grade slate.

Aesthetic Balance: Blend slates from multiple pallets during installation to ensure uniform color distribution.


Request your BS EN 12326 Declaration of Performance today—where proven standards meet timeless craftsmanship.

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1990 – 2025

Our Most Efficient Year

While modern machinery now handles heavy lifting and transport, Ankang’s slate industry remains deeply rooted in artisanal tradition.

The essence of our craft still lies in skilled hands – from precision splitting to meticulous quality control. This perfect balance of technology and craftsmanship ensures each piece maintains the timeless quality that has defined our region’s slate for generations.

Our History

Honoring Heritage Through Modern Craftsmanship

Why Choose RTS

6 Guarantees Behind Every Slate We Deliver

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One Quarry

The production process

handled by one site

ensures all products from

this location.

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Artisanally Crafted​

Each piece is meticulously

handcrafted to preserve

natural slate textures.

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Modular Customization​

Mix and match modular

sizes to fit unique design

visions.

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Full-process Control​

Stone to finished product

– cutting, Edging, holing

, and packing within our

facilities.

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BS EN 12326​

BS EN 12326 CE

certified: A1/S1/T1/W1

compliant.

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UK Warehouse

Standard-sized slate is

readily available and

stocked in ample quantities

across the UK.

Working With The Best

Our Projects

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About

Red Tree Slate – A robust, 

long-lasting natural slate 

engineered for superior 

performance in Western 

markets.

Redtree Slate

+86 0915-3237577

marty@redtreeslate.com

Artistry from Nature Engineered for Excellence: Roofing, Cladding, Flooring 

& Beyond