
Government headquarters — 33,000 ㎡ of public-area stone facing the four toughest hurdles in government work: strict public tendering, Class A fire rating, seismic intensity 8 and zero incidents. HENGSHENG MARBLE S&T CO. LIMITED Stone delivered fully compliant in 22 months.

The government headquarters embraces the idea of an "open government": the main entrance and civic lobby use book-matched Calacatta Gold feature walls for formal, ceremonial presence; the public service areas and council chamber take Carrara White as their keynote, conveying transparency and openness; the meeting rooms and press briefing hall use contrasting Nero Marquina for depth — three principal stones forming a stone language unique to government, balancing dignity with approachability.
HENGSHENG MARBLE S&T CO. LIMITED Stone supplied and installed the 33,000 ㎡ of public-area stone; every stone passed Class A fire rating, seismic intensity 8, stain resistance grade 5 and heavy-metal-free testing. Over 22 months the government tender procedures were followed to the letter — zero violations, zero complaints.
Three principal stones cover dignity, openness and depth across the headquarters, unified by fire, seismic and environmental certifications.



All 14 photographs are as-built records of the completed areas. Click any image to view the stone details enlarged.














Six stages from public tender to phased handover — 22 months of strict tender discipline, every material traceable.

360° laser scanning of the five civic floors produced millimetre-level point clouds, resolving 286 structural deviations in advance.

All five lots were publicly tendered and awarded to the lowest compliant bidder; every material came with certificates of origin and customs declarations.

Five-axis CNC machined every slab; Class A fire coatings were factory-applied to a tolerance of ±0.5 mm.

All stone packed to GB/T 18600 with shock-absorbing lining; GPS-monitored transport with zero breakage end to end.

Every worker fully certified — 100% of special trades licensed; every installation traceable to its crew and time.

The building's fire coatings passed Class A acceptance first time, with 100% sampling of every joint.
Craft details up close — government work is won in millimetre-level rigour.

Every stone joint sealed with Class A fire-rated sealant, fire resistance ≥2 hours once cured, tested to BS 476.

Stone backed with 30 mm fire-rated rockwool composite giving 4 hours' fire resistance; the whole wall passed Class A acceptance.

All stone uses underbolt seismic anchors designed to seismic intensity 8, withstanding rare major earthquake loads.

Dry-hung curtain wall joints at a standard 1.5 mm width, withstanding 1-in-50-year wind pressure with no risk of dislodgement.

Key-area stone carries tamper-proof markers; material origin, installing crew and inspection results are traceable end to end.

All eight lift-lobby column wraps in Nero Marquina book-match, with joint deviation ≤0.3 mm.
The strictest tender, fire, seismic and environmental hurdles in government work — HENGSHENG MARBLE S&T CO. LIMITED Stone answers with data.
Government tendering is unforgiving — origin certificates, radioactivity reports, customs declarations and social-security records are all mandatory; a single violation voids the entire lot.
Fire acceptance is the strictest test for public buildings: all stone must be certified Class A to BS 476 / GB 8624 with fire resistance ≥2 hours.
Hong Kong's seismic design intensity is 7, with major public buildings designed to 8; curtain-wall stone must never dislodge in a major earthquake.
Indoor environmental standards for public buildings are exacting — VOC and heavy-metal emissions must beat E1.
Whatever the scale of your project, our engineering consultants will tailor the optimal stone solution for you — from material selection through to handover, with one-to-one service throughout.
Thank you for your enquiry. Our engineering consultant will contact you within 24 hours.
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