Quartz stone countertops have taken over from granite and marble as the surface of choice in modern kitchens and bathrooms worldwide, and China is now the world’s leading producer of engineered quartz slabs. Foshan and the surrounding Guangdong region have a significant cluster of quartz stone manufacturers, and buying directly from them gives importers, kitchen companies, and developers access to factory pricing that is dramatically lower than purchasing through a local distributor. This guide covers what you need to know before placing an order.
What Engineered Quartz Actually Is
Quartz stone countertops are not natural stone. They are an engineered product made from approximately 90 to 95 percent ground quartz aggregate bound with polymer resins and pigments. The result is a non-porous, highly durable surface that resists staining, scratches, and bacteria better than natural stone. It does not need sealing, holds up well in kitchen environments, and is available in a consistent color and pattern that natural stone cannot match. These properties have made it the dominant choice for kitchen benchtops across most Western markets.
What Chinese Factories Produce
Chinese quartz manufacturers produce slabs in standard sizes of approximately 3050x1440mm and 3200x1600mm at thicknesses of 12mm, 15mm, 18mm, and 20mm. The most popular export thickness is 20mm for kitchen countertops. The product range covers plain solid colors, veined marble-look designs, concrete-effect surfaces, and glitter or metallic finishes. The equipment used in leading Foshan-area factories is Breton-line Italian presses, which are the same technology used by major international quartz brands. Some Chinese factories supply slab material to Western quartz brands who then cut and sell it under their own name.
Price Expectations
Quartz slab prices out of China typically range from USD $18 to $45 per square meter depending on thickness, design complexity, and factory quality tier. High-gloss finishes and complex vein patterns sit at the higher end. Shipping cost for quartz slabs is significant due to weight, so factor in freight carefully when calculating your landed cost. Slabs need specialized crating and loading to prevent breakage during transit.
Working with Us on Quartz Sourcing
Agent Foshan sources quartz stone slabs and countertops for kitchen manufacturers, stone processors, importers, and construction companies. We inspect slab quality at the factory, arrange proper export crating, and manage sea freight to your destination. Tell us your required colors, thickness, and quantity and we will source options from our verified factory network.
Resin content is the number nobody quotes you
Engineered quartz is roughly ninety percent ground quartz bound with polymer resin and pigment. That last ten percent decides almost everything about how the slab behaves.
Higher quartz content gives a harder, more scratch resistant surface. Higher resin content is cheaper to produce, easier to press, and gives a slab that is softer, more prone to scratching and considerably more sensitive to heat. Factories rarely volunteer the ratio, so ask for it, and ask for the density figure alongside it.
The heat point matters practically. Resin discolours and can scorch well below the temperature people assume a stone surface will tolerate, which is why a hot pan straight from the hob leaves a permanent mark on quartz but not on sintered stone or granite. If your customer wants to put hot cookware down without thinking, quartz is the wrong material and you should say so at the point of sale rather than handling the complaint later.
Slab size and thickness drive your yield
Standard slabs commonly run around 3,200 by 1,600mm, with jumbo formats available from larger plants. Thickness is typically 20mm or 30mm for worktops, with 12mm used for cladding and furniture tops.
Slab size matters more than buyers expect because it determines yield. A kitchen with a long island may need two slabs from a standard format and one from a jumbo, and the offcut waste is the difference. When you compare quotations per slab rather than per finished square metre of worktop, you can easily choose the more expensive option by accident. Ask your fabricator to calculate yield from the actual layout before you pick a supplier.
Veining continuity separates the price tiers
Plain speckled quartz is straightforward to manufacture and consistent between slabs. Marble look quartz with long directional veining is much harder, because the veining has to run believably through the thickness and match across adjacent slabs if a customer wants a bookmatched island.
If your project needs continuous veining across joins, you must buy consecutive slabs from the same batch and say so at order stage. Buying two slabs of the same product code from different production runs and expecting the veins to line up is the most common disappointment in this category.
Price ranges
| Product | Approx. FOB per slab | Per square metre |
|---|---|---|
| Plain or speckled, 20mm | USD 90 to 160 | USD 18 to 32 |
| Fine vein marble look, 20mm | USD 140 to 260 | USD 28 to 50 |
| Bold vein marble look, 20mm | USD 220 to 420 | USD 42 to 80 |
| Same, 30mm | USD 300 to 600 | USD 58 to 115 |
| Jumbo format premium | USD 420 to 900 | USD 60 to 130 |
Approximate FOB ranges for slabs before fabrication. Cutting, edge profiling, cut outs and polishing are separate costs and are usually done at destination.
Crating is the whole logistics problem
Slabs travel vertically in steel or timber A frames, never flat. A slab laid flat in a container will crack from its own weight over a long sea journey, and a slab that is not tightly strapped will chatter against its neighbour and chip along the edges.
Insist on A frame crating with foam interleaving between slabs, edge protection, and steel banding. Ask for photographs of the loaded frames. Quartz is dense, so you will reach the container weight limit long before the volume is used, which normally makes a 20 foot container the right choice.
A note on fabricator safety
Cutting and polishing engineered quartz releases fine crystalline silica dust, and prolonged exposure without proper controls is a recognised occupational health hazard that has led to regulatory action in several countries. If you supply fabricators, it is worth confirming they use wet cutting and appropriate extraction and respiratory protection, and worth checking whether your destination market has introduced restrictions on high silica engineered stone. Take advice locally, because the regulatory position is changing.
What goes wrong
- Higher resin content than the approved sample, giving a softer, more heat sensitive slab.
- Batch to batch colour and vein variation on a project that needed continuity.
- Corner chips from poor crating, which usually fall exactly where an edge would have been visible.
- Cracks from flat loading. Confirm A frames before the container is sealed.
- Yield miscalculated, so a kitchen needs an extra slab that arrives from a different batch.