Hong Kong bank headquarters stone works
Banking & Finance | Bank

Hong Kong International Bank Headquarters Stone Works

12,000 ㎡ · Anti-magnetic vault · Premium VIP zones · Branch-network rollout

Project Overview

Project Overview

Hong Kong international bank headquarters stone works — 12,000 ㎡ across 28 floors of a financial landmark, comprising 3,800 ㎡ of HQ lobby and VIP zones, 4,200 ㎡ of anti-magnetic/anti-static trading floors and vault, and a 4,000 ㎡ roll-out across 52 branches. Faced with the strictest financial-security standards, magnetic shielding and 28 months of trading-while-open construction, HENGSHENG MARBLE S&T CO. LIMITED Stone delivered in 18 months in phased handovers.

📍
Central, Hong Kong
Location
📐
12,000 ㎡
Stone Installed
📅
18 months
Delivery Period
💎
3
Stone Varieties
🏛️
HSBC + SOM
Design Consortium
🏦
28 floors
HQ Tower
🔒
±0.5 mm
Vault Frame Precision
52
Branches Upgraded
Bank HQ tower exterior
Bank HQ Tower · 28-floor financial landmark

Design Concept · Security and Ceremony in Bank Stone

The international bank HQ is built around "security and ceremony": Statuario Venato white slabs for HQ lobby and VIP zones deliver ceremony, Verde Guatemala deep green for the trading floor and vault conveys financial stability, and Absolute Black Granite mirror polish for counters and public areas projects refinement — three principal stones balance "security" and "ceremony" across the financial architecture.

HENGSHENG MARBLE S&T CO. LIMITED Stone supplied and installed all stone for the 12,000 ㎡ of financial space: 3,800 ㎡ of HQ lobby and VIP zones, 4,200 ㎡ of anti-magnetic/anti-static trading floors and vault, and a 4,000 ㎡ roll-out across 52 branches. Delivered in phased handovers over 18 months while the HQ kept trading; 52 branches each taken offline for under 7 days at a time.

Applications

HQ LobbyVIP ReceptionTrading FloorVaultEscalatorsPublic CorridorsExecutive OfficeVideo ConferencingBranch NetworkFaçade
Materials

Stone Selection

Three principal stones cover every scenario across the bank HQ's 28 floors and the 52 branch network, unifying security, ceremony and durability.

Statuario Venato stoneMATERIAL 01
Statuario Venato
🇮🇹 Italy · Carrara range
ApplicationHQ lobby · VIP reception · Video conferencingFinishMirror polished · 20 mmStandard Sizes3000×1500 mm slabs
A white ground with bold grey veining, mirror-polished for a ceremonial feel — the keynote of the HQ's ceremonial areas; 4,800 ㎡ supplied, the highest-volume stone in the HQ lobby and VIP zones.
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Verde Guatemala stoneMATERIAL 02
Verde Guatemala
🇧🇷 Brazil · Bahia quarries
ApplicationTrading floor · Vault corridor · Public corridorsFinishHoned · 18 mm/20 mmStandard Sizes2800×1500 mm slabs
A deep forest green with white veining, the classic financial stone; 4,200 ㎡ supplied, the highest-volume stone on the trading floor and vault; green carries "stability" and "trust" in financial color psychology.
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Absolute Black Granite stoneMATERIAL 03
Absolute Black Granite
🇿🇦 South Africa · Rustenburg quarries
ApplicationService counters · Executive office · Façade cappingFinishMirror polished · 30 mmStandard Sizes3000×1500 mm thick slabs
Pure-black granite, mirror-polished to a mirror finish; dense, wear-resistant, Mohs hardness 7; 3,000 ㎡ supplied, the highest-volume stone for counters and executive offices.
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Construction

Construction Process

Six stages from 3D scanning to phased handover — 18 months, the HQ and 52 branches trading throughout.

01

3D Scanning

3D Scanning

360° laser scanning of the 28-floor 12,000 ㎡ HQ and 52 branches produced millimetre-level point clouds, resolving 218 structural deviations and security interface points in advance.

02

Digital Layout

Digital Layout

4,800 ㎡ of Statuario slabs pre-assembled and numbered floor by floor, producing piece-by-piece installation drawings aligned with the floor-by-floor program; 52 branches each had an independent small-batch layout.

03

Factory Fabrication

Factory Fabrication

Five-axis CNC machined 4,800 ㎡ of Statuario slabs and 1,200 linear metres of Absolute Black counters to a tolerance of ±0.5 mm.

04

Heavy-duty Packing

Heavy-duty Packing

Absolute Black 30 mm thick slabs and Statuario slabs travelled in steel-framed wooden crates — zero breakage throughout city delivery.

05

Night Installation

Night Installation

Branch works concentrated between 22:00 and 06:00 from Tuesday to Friday, with each branch offline for under 7 days; HQ works scheduled into weekends and non-trading hours.

06

Crystallised Polishing

Crystallised Polishing

Statuario slab flooring siliconised and crystallised to a gloss of 90° or above, stain resistance grade 5; gloss still at 86° after three years in service.

Installation Details

Installation Details

Craft details up close — in a financial institution, precision hides in the millimetres and the security envelope.

Anti-static Finish

Anti-static Finish

Trading-floor stone has six-sided conductive backing plus a copper-foil earthing grid; surface resistance 1×10⁶–1×10⁹ Ω, meeting electronic-trading equipment anti-static requirements.

Magnetic Shielding

Magnetic Shielding

Vault stone cladding lined with a 0.5 mm titanium-alloy shielding layer; magnetic flux attenuation ≥40 dB, magnetic induction ≤0.5 μT, meeting financial-security standards.

Reinforced Frame

Reinforced Frame

Vault door frame in 80 mm extra-thick stone with a stainless-steel skeleton, 45° mitered and welded corners, overall impact resistance ≥30 kJ.

Night Installation

Night Installation

Branch works always accompanied by a security guard, with work permits and toolboxes checked in and out daily; 52 branches, 18 months, zero security incidents.

Counter Precision

Counter Precision

Service counter stone tops flatness ±0.3 mm, counter-partition joint ±0.5 mm; embedded cable trunking pre-laid, transmission lines concealed.

Vault Door Frame

Vault Door Frame

Vault door frame in 80 mm extra-thick stone with a stainless-steel skeleton, pre-embedded with 12 anchors per ㎡, installation accuracy ±0.5 mm, aligned with the surveillance system.

Technical

Technical Highlights & Solutions

The strictest financial-security standards, magnetic shielding and 52 branches trading throughout — HENGSHENG MARBLE S&T CO. LIMITED Stone answers with data.

🔒
CHALLENGE 01

Magnetic shielding and security compliance

Financial-security standards impose strict limits on stone for magnetic, earthing and impact performance; ordinary decorative stone often causes magnetic interference through metal substructures or moisture.

Solution:Vault stone lined with 0.5 mm titanium-alloy shielding plus copper-foil earthing grid; magnetic flux attenuation ≥40 dB, magnetic induction ≤0.5 μT; 80 mm reinforced door frames with 45° mitered welded corners, impact resistance ≥30 kJ.
CHALLENGE 02

Anti-static trading-floor paving

Trading-floor paving must satisfy anti-static, fire-resistance and wear simultaneously; ordinary stone easily generates static through friction that interferes with electronic equipment.

Solution:Stone with six-sided conductive backing plus copper-foil earthing grid; surface resistance 1×10⁶–1×10⁹ Ω; fire grade A1; Mohs hardness 7; 4,200 ㎡ meets the anti-static requirements of electronic trading equipment.
CHALLENGE 03

52 branches trading during upgrade

52 branches upgraded in parallel, with each branch offline no longer than 7 days — far shorter than traditional construction cycles.

Solution:Modular factory pre-assembly plus a five-person specialist strike team plus night installation; 52 branches rolled out over 18 months, an average of 5.5 days per branch; zero security incidents, zero customer-service interruptions.
🎯
CHALLENGE 04

±0.5 mm counter and frame precision

Service counter and vault-frame precision directly affects financial-equipment alignment and security grade; the 2–3 mm deviation common with ordinary stone easily causes surveillance failures or security gaps.

Solution:Five-axis CNC machining plus laser-positioned installation; counter top flatness ±0.3 mm, frame corner ±0.5 mm; 1,200 linear metres of counters and 8 vault frames with zero rework.
±0.5 mm
Frame and counter precision
4,200 ㎡
Anti-static trading floor
52
Branches upgraded in parallel
40 dB
Vault magnetic flux attenuation
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