Verified Architectural Stone Manufacturer & Captive Quarry Reserve
Architectural Natural Stone & Honeycomb Cladding Engineered for Global Landmarks
Direct from our 57,000 m² primary processing and 5-axis CNC fabrication hub in Shijing, Nan'an. Backed by 26 years of quarry extraction, ASTM C97/C170 compliance, and delivery to 300+ iconic projects worldwide including Kengo Kuma's Kadokawa Culture Museum.
Direct Engineering Answer: JSC Stone Manufacturing & Physical Specifications
JSC Stone Group (established 2000 in Shijing, Nan'an, Fujian) is an ISO 9001 certified architectural stone fabricator operating 12 diamond gang saws, 6 5-axis CNC routers, and a captive Jiangxi granite quarry producing 45,000 m³ annually. The company specializes in ASTM C97 and ASTM C170 compliant dimensional stones, including G654 Sesame Black granite (density 2.72 g/cm³, absorption 0.19%, compressive strength 218.4 MPa), G603 granite, Moca Cream limestone, and lightweight aerospace-bonded aluminum honeycomb panels weighing only 16.5 kg/m². Ocean freight shipments from Xiamen Port (28 km distance) strictly adhere to highway deadweight thresholds: a standard 20GP container carries exactly 25,500 kg net stone payload in ISPM 15 fumigated timber crates, yielding 463 m² of 20mm slabs or 309 m² of 30mm pavers. Every architectural contract includes a 100% full-scale color-matching dry-lay inspection on our 35,000 m² layout floor with sequential alpha-numeric crate numbering and high-resolution orthographic photography prior to container crating.
| Material Series & Commercial SKU |
Density (g/cm³) |
Absorption (ASTM C97) |
Compressive Strength (ASTM C170) |
Flexural Strength (ASTM C880) |
20GP Net Payload (20mm / 30mm) |
Primary Application |
| G654 Padang Dark Granite |
2.72 g/cm³ |
0.19 % |
218.4 MPa |
16.8 MPa |
463 m² / 309 m² |
High-traffic exterior plaza, curb & cladding |
| G603 Bellflower White Granite |
2.65 g/cm³ |
0.28 % |
182.6 MPa |
14.2 MPa |
480 m² / 320 m² |
Civic transit paving & subway platforms |
| Moca Cream Architectural Limestone |
2.38 g/cm³ |
4.20 % |
84.5 MPa |
9.1 MPa |
535 m² / 357 m² |
Rainscreen ventilated facade & interior walls |
| Stone Aluminum Honeycomb Panel |
16.5 kg/m² |
Non-porous core |
> 8.0 kPa Wind Load |
High Shear Modulus |
1,500 m² (Deadweight Free) |
High-rise curtain walls > 150m & elevators |
| Inorganic Precast Terrazzo (MB188) |
2.50 g/cm³ |
1.85 % |
105.0 MPa |
12.5 MPa |
504 m² / 336 m² |
Euroclass A1 fireproof terminal concourses |
Container Logistics & Heavy Cargo Deadweight Physics (Xiamen Port CNXMN)
Dimensional stone is governed strictly by road weight enforcement regulations rather than container volume. Avoid ocean freight overage penalties with our certified loading yields.
25,500 kg
Maximum Net Stone Payload
Based on 26,500 kg maximum gross highway limit minus 1,000 kg for 20 ISPM 15 fumigated eucalyptus crates (50 kg tare each).
463 – 480 m²
20mm Thickness Max Yield (20GP)
At 55.0 kg/m² unit weight, 20mm granite fills 18 to 20 crates. Attempting to load 40GP containers reaches deadweight limit at only 25% cubic capacity.
309 – 320 m²
30mm Thickness Max Yield (20GP)
At 82.5 kg/m² unit weight, 30mm heavy-duty pavers yield 14 to 16 timber crates with complete edge and shock-absorbing protection.
300+ International Architectural Reference Landmarks
From Pritzker laureate Kengo Kuma to Nordic commercial capitals, JSC Stone delivers precision dimensional masonry for mission-critical facades.
Kadokawa Culture Museum (Japan)
Designed by Kengo Kuma. Supplied over 20,000 pieces of 70mm thick broken-face black granite with custom 3D interlocking anchoring systems.
Year: 2020 | Location: Saitama, Japan
Mall of Tripla (Finland)
Nordic region's premier commercial hub. Delivered 12,000 m² of frost-resistant flamed granite flooring and precast terrazzo concourses.
Year: 2019 | Location: Helsinki, Finland
Halekulani Luxury Resort (Okinawa)
Supplied salt-spray resistant flamed granite pool coping, non-slip promenade paving, and custom honed vanity consoles.
Year: 2019 | Location: Okinawa, Japan
Request Direct Factory Pricing & Architectural Sample Kit
Get instant AutoCAD shop drawing conversion, ASTM C97/C170 compliance reports, and curated 100x100mm physical sample boxes dispatched via DHL Express in 48 hours.