Frequently Asked Question

GQ Company

Orders

Payment
Products

GQ Company

Yes. We support OEM and ODM cooperation, offering flexible customization and bulk supply solutions. Our services are tailored for distributors, wholesalers, and project partners seeking stable quality and long-term collaboration.

We primarily serve the U.S. market, with ongoing exports to Europe, the Middle East, and other regions, such as Canada, Australia, Brazil, Saudi Arabia, Dubai, and the UAE.

As a trusted quartz slab supplier, we frequently work with distributors and project partners for hotels, apartments, and commercial developments. Although client privacy prevents us from disclosing all project details, we have supplied materials for notable publicly recognized projects such as Mercedes Benz Stadium, Trump International Hotel & Tower Vancouver, Pabst Farms, Shannon Estate, and Marriott Hotels & Resorts.

Yes, our quartz slabs are suitable for commercial use.
Our quartz product contain 93% high-purity quartz sand, which provides excellent strength and durability. The oxidation-resistant resin prevents discoloration, even under heavy use.
This makes them ideal for high-traffic commercial environments, including hotels, restaurants, offices, and retail spaces.
Our slabs are SGS-tested and NSF-certified, meeting strict quality and safety standards for commercial applications. Additional third-party testing can be arranged for specific project requirements.

Yes, test reports are available.
Our products are tested by SGS and are NSF-certified for countertop applications.
If additional third-party testing is required, we can arrange further tests based on your specific requirements.

Yes. We support private label and OEM services for distributors, wholesalers, and project partners.

Yes. We can match quartz slabs to provided samples and also offer customization based on drawings or design specifications to meet project requirements.

Yes, we attend major industry exhibitions each year, including TISE, Coverings, KBIS, Xiamen International Stone Fair, Marmomac, and others.In the upcoming quarter, we will attend TISE, KBIS, and Coverings, and we warmly welcome you to visit us to see our latest products.

Grandquartz is located in Chonburi, Thailand, and we export finished products directly from Laem Chabang Port, which provides efficient access to global markets

We primarily offer engineered quartz countertops and engineered quartz slabs. Additionally, we can manufacture custom countertops and non-standard sizes according to customer specifications.

Of course, we warmly welcome you to visit our factory in Chonburi, Thailand.
Our professional reception team will arrange airport pick-up and guide you on a full tour of our facility.

Orders

We offer flexible minimum order quantities. For orders that do not fill a full container, our experienced logistics team can arrange LCL shipments. Please feel free to contact us for details.

Yes, you can mix colors in one container. Up to three colors are allowed per container, and this will not affect the standard lead time.

Yes, we welcome trial orders and can provide samples so you can check the quality before committing to a larger order.

We can arrange priority production for urgent orders.

Yes. We have over 10 years of experience handling project-based orders. With four production lines running 24/7, we can deliver quickly and support large-scale customization to meet your project needs.

Yes, we offer customization of slab size, thickness, and color to meet your specific project or design requirements.

Yes. We support private label and OEM services for distributors, wholesalers, and project partners.

Yes, we can match quartz slabs to samples or drawings. We have many successful color-matching and drawing-based production cases available for your reference.

Yes, we can develop new quartz colors for exclusive markets. We have a professional R&D team and skilled color specialists who can create new colors according to client requirements.

Multiple measures are taken to ensure safe transport of quartz slabs:
 
1. Protective film – Each slab is covered with a thin film before packing.
 
2. Wooden frame and foam padding – Each unit is enclosed in a wooden frame with foam padding.
 
3. Precise container loading – Container capacity is calculated and slabs are carefully arranged to minimize gaps.
 
4. Corner and edge reinforcement – Protective corner guards and edge supports are added to each slab.
 
5. Shock-absorbing supports – Additional supports are placed between slabs to stabilize them.
 
6. Secure strapping – Straps are used to firmly secure slabs inside the container.
 
7. Fragile labels – All packages are clearly marked with “Fragile” labels.

If you encounter any quality issues with the slabs, please contact us immediately. Our QA team will diagnose the issue and provide a solution as quickly as possible.

Sure. You are warmly welcome to visit our factory and inspect the goods. We can also arrange third-party inspections if required.

We offer a wide range of edge profiles, including Eased Polished, Half Bullnose, Full Bullnose, Bevel Edge, Radius Edge, Flat Laminated, and Bevel Laminated. Custom profiles can also be developed upon request.

We make the sink cutouts and faucet holes using a CNC cutting machine, ensuring accurate dimensions and fine finishing.

Payment

Yes. A 30% T/T deposit is required after order confirmation, with the remaining 70% payable against the copy of the Bill of Lading (B/L).

Yes. For repeat or long-term clients, advance payments and other terms can be adjusted based on mutual agreement.

Our standard payment terms are a 30% T/T deposit upon order confirmation, with the remaining 70% payable against the copy of the Bill of Lading (B/L).

Products

Engineered quartz is a man-made stone composed of natural quartz sand blended with resin and pigments. Our slabs contain 93% quartz sand and utilize oxidation-resistant resin to ensure quality and color fastness.

Our Calacatta quartz slabs are available in 2 cm and 3 cm thicknesses, while our basic color quartz slabs can be produced in 1.5 cm, 1.8 cm, 2 cm, and 3 cm, depending on the specific drawings and order requirements.

Yes, our quartz slabs are suitable for commercial use.
Our quartz product contain 93% high-purity quartz sand, which provides excellent strength and durability. The oxidation-resistant resin prevents discoloration, even under heavy use.
This makes them ideal for high-traffic commercial environments, including hotels, restaurants, offices, and retail spaces.
Our slabs are SGS-tested and NSF-certified, meeting strict quality and safety standards for commercial applications. Additional third-party testing can be arranged for specific project requirements.

We offer multiple surface finish options, including polished, leathered, and honed, to meet different design and application requirements.

Yes, test reports are available.
Our products are tested by SGS and are NSF-certified for countertop applications.
If additional third-party testing is required, we can arrange further tests based on your specific requirements.

Yes, we offer customization of slab size, thickness, and color to meet your specific project or design requirements.

Our quartz products are polished by the automatic polishing machine, followed by manual fine polishing to ensure each slab meets the required standard of gloss and smoothness.

While our quartz surfaces are heat-tolerant, we still recommend using trivets or heat pads to avoid thermal shock caused by cookware or appliances.

No, quartz surfaces do not require sealing because of their natural non-porous structure.

No, we do not recommend using quartz surfaces outdoors. Exposure to UV rays, humidity, and moisture may lead to faster wear and tear, reducing the your quartz surface’s lifespan.

Quartz countertops can last for decades due to their high durability, non-porous nature, and resistance to stains, scratches, and impact. With proper care and maintenance, these surfaces maintain their quality and appearance over time.