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Mark Gain Investment Limited (security company licence 0536)

Mark Gain Investment Limited holds security company licence 0536 (Type III), according to the Security and Guarding Services Industry Authority’s list. Its address on the list is Rm 3&4, 3/F, Wah Yuen Fty Bld, 15-21 Beech St, Tai Kok Tsui, KOWLOON. Confirm the licence on the Authority’s own list before relying on it.

Name
Mark Gain Investment Limited
Chinese name
滿量投資有限公司
May also trade as
ACE Automatic System (HK) Co / 日電自動系統(香港)公司
Licence
0536: Type III
Types of security work
Type III Installation, maintenance and/or repairing of a security device and/or designing (for any particular premises or place) a security system incorporating a security device
Telephone
2392 8330
Address
Rm 3&4, 3/F, Wah Yuen Fty Bld, 15-21 Beech St, Tai Kok Tsui, KOWLOON
District
Yau Tsim Mong District
Check it
the Authority’s list of licensed security companies — search for 0536; an e-licence’s QR code can be checked on the verification page

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Getting there

Nearest MTR
Olympic · 444 m, about 6 min on foot
Nearest MTR exit
Olympic Exit C4 (HSBC Center Tower 1) · 355 m, about 4 min on foot
Nearest public toilet
Anchor Street Playground Public Toilet · 225 m, about 3 min on foot
Bus & minibus stops within 300 m
36

All licensed security companies in Hong Kong · Licensed security companies in Yau Tsim Mong

Data source: Security and Guarding Services Industry Authority, List of licensed security companies (data.gov.hk); district boundaries from the Home Affairs Department · Data © the Government of the HKSAR · Data refreshed 2026-10-05 · the Authority publishes the open-data list monthly; synced weekly
香港地圖 Map of Hong Kong © 地圖由地政總署提供 Map from Lands Department