Kowloon Motor Bus
Hong Kong's largest franchised bus operator by fleet size and route coverage.
Last updated August 31, 2026
AI crawler reads
No AI crawler has read this profile since Oct 28, 2026.
Overview
Kowloon Motor Bus, formally The Kowloon Motor Bus Company (1933) Limited and commonly known as KMB, is a franchised public bus operator serving Kowloon and the New Territories of Hong Kong. It is the largest bus company in Hong Kong by fleet size and route count, operating more than 4,000 buses and hundreds of routes, including cross-harbour services. The company is a subsidiary of Transport International Holdings, a Hong Kong-listed transport group, but KMB itself is not separately listed. KMB was established on 13 April 1933 during a government-led reorganisation of Hong Kong's bus services. Its original franchise covered public omnibus operations in Kowloon and the New Territories. The inaugural fleet consisted of 106 single-deck buses. Service expansion was interrupted by the Second World War: by December 1941 the company had 140 buses on 17 routes, but only a small number survived the conflict and lorries were temporarily adapted for passenger use. Post-war population growth, including substantial immigration from mainland China, drove a rapid recovery in ridership and network development. In 1949, KMB purchased 20 Daimler double-deckers from England. This made it the first operator to introduce double-decker buses in Hong Kong and established a vehicle format that became central to the city's high-capacity surface transport system. KMB later adopted European chassis and locally or overseas-built bodies from a range of manufacturers. The company introduced Hong Kong's first air-conditioned bus in 1975 and experimented with air-conditioned double-deckers in the early 1980s. It subsequently became the world's first operator of air-conditioned double-decker buses. All new purchases were air-conditioned from 1995, and the last non-air-conditioned KMB bus was withdrawn in 2012. The opening of the Cross-Harbour Tunnel in 1972 enabled KMB to operate routes jointly with China Motor Bus and extend its services to Hong Kong Island. KMB also experimented that year with driver-only operation, in which passengers boarded through the front door and deposited fares beside the driver. The company's franchised network later developed a complex numbering and lettering system covering local, express, airport, railway-feeder, late-night, hospital, event and cross-harbour services. KMB diversified beyond its traditional Kowloon and New Territories franchise. In 1997 it established Long Win Bus to operate services associated with the Lantau Link, Hong Kong International Airport and Tung Chung. In 1998 it entered mainland China through a cooperative venture in Dalian. It also operated feeder services associated with the former Kowloon-Canton Railway Corporation under a 1999 agreement whose arrangements continued after the railway corporation's merger with MTR. The brand has progressively modernised its passenger interface, fare collection and fleet. Passengers can use cash, Octopus, contactless bank cards, QR payments and mobile wallets, while route interchange discounts are available for selected Octopus combinations. KMB introduced a monthly pass in 2018. Its fleet has increasingly incorporated Euro VI diesel, hybrid and battery-electric vehicles. New zero-emission buses use an Electric Green livery, and the company has stated an objective of expanding its battery-electric fleet substantially. In 2024, one of KMB's Alexander Dennis Enviro500EV buses entered service on route 112. KMB's visual identity has also changed from its historic red-and-cream scheme to successive white, grey, champagne, and red-and-silver treatments. A redesigned logo introduced in 2017 retained the KMB wordmark while simplifying the previous emblem and Chinese slogan. In addition to bus operations, the KMB name has historically been associated with a football club that won Hong Kong First Division League titles in 1953-54 and 1966-67. The transport business remains an active and essential part of Hong Kong's public transport system.
History
Kowloon Motor Bus was created on 13 April 1933 as part of the Hong Kong government's reorganisation of public transport. Before the reorganisation, a number of independent bus operators served communities on both sides of Victoria Harbour. KMB received a franchise to operate public omnibus services in Kowloon and the New Territories, beginning with 106 single-deck buses. The company had expanded to 140 buses serving 17 routes by December 1941, when wartime disruption severely affected operations. Only a limited number of buses survived the Second World War, so some lorries were converted temporarily for passenger service. Recovery accelerated after the war as Hong Kong's population grew and large numbers of immigrants arrived from mainland China. In 1949, KMB bought 20 Daimler double-deckers from England. Their introduction made KMB the first Hong Kong operator of double-deck buses and helped define the high-capacity operating model later associated with the city. The opening of the Cross-Harbour Tunnel in 1972 transformed KMB's role. The company began operating several cross-harbour routes jointly with China Motor Bus, which had previously been the sole bus operator on Hong Kong Island. KMB also tested driver-only operation, removing the need for a separate fare collector. In 1975 it introduced Hong Kong's first air-conditioned bus. Trials of air-conditioned double-deckers followed in the early 1980s, and KMB became the world's first operator of this type of vehicle. Air conditioning became a defining feature of the fleet: purchases after 1995 were air-conditioned, and the last non-air-conditioned vehicle was retired in 2012. During the late twentieth century KMB expanded its network and diversified its relationships with other transport institutions. It established Long Win Bus in 1997 to serve the Lantau Link, Hong Kong International Airport and Tung Chung. In 1998, it entered mainland China through a cooperative joint venture in Dalian. A 1999 agreement with the Kowloon-Canton Railway Corporation provided for KMB operation of certain railway-feeder routes, with the arrangement continuing after the later MTR-KCR merger. KMB also developed its brand and operating systems. It launched a modern-image advertising campaign in 1996 and was described in the reference material as the first bus company in Hong Kong to display advertisements. Route numbering developed into a detailed geographic and service classification system: lower numbers generally identify Kowloon routes, numbered ranges identify New Territories districts, and separate ranges identify cross-harbour services. Letter prefixes and suffixes distinguish airport, border, hospital, night, express, railway-feeder, peak and special-event services. The operator's technology and fleet strategy continued to evolve in the twenty-first century. Cash was supplemented by Octopus, contactless cards, QR payments and mobile wallets. KMB introduced its monthly pass in 2018. The fleet increasingly adopted Euro VI diesel vehicles, diesel-electric buses, solar-assisted equipment and battery-electric buses. The company introduced an Electric Green identity for zero-emission vehicles and began deploying Alexander Dennis Enviro500EV double-deckers, including a vehicle placed on route 112 in 2024. KMB's franchise was renewed for a ten-year term beginning in July 2007 and has subsequently been renewed through June 2027 according to the supplied reference material. The company's main operating infrastructure includes depots in Kowloon, Lai Chi Kok, Sha Tin and the western New Territories, with subsidiary facilities supporting maintenance and fleet deployment. KMB remains a subsidiary of Transport International Holdings and continues to operate one of Hong Kong's most extensive franchised bus networks.
- 2024
Enviro500EV enters route service
[1]One of KMB's Alexander Dennis Enviro500EV battery-electric double-deckers begins operating on route 112.
- 2023
Ninetieth anniversary
[1]KMB marks 90 years of service.
- 2018
Monthly Pass launched
[1]KMB introduces a monthly pass offering defined daily ride allowances on eligible services.
- 2017
Brand identity redesigned
[1]KMB introduces a red-and-silver livery and simplified logo centred on the wordmark.
- 2012
Non-air-conditioned fleet retired
[1]KMB withdraws its last non-air-conditioned bus.
- 2007
Ten-year franchise begins
[1]KMB begins operating under a ten-year franchise arrangement, later renewed through June 2027 according to the supplied reference.
- 1998
Mainland China expansion
[1]KMB extends its business into mainland China through a cooperative joint venture in Dalian.
- 1997
Long Win Bus is formed
[1]KMB establishes Long Win Bus to operate services on the Lantau Link and serve the airport and Tung Chung.
- 1996
Modern-image advertising campaign
[1]KMB launches a campaign intended to present a more modern corporate image and begins displaying bus advertising.
- 1975
First air-conditioned bus
[1]KMB puts Hong Kong's first air-conditioned bus into service.
Products and positioning
A high-capacity, territory-wide Hong Kong public transport operator combining extensive franchised coverage with a large predominantly double-deck fleet and increasingly low-emission vehicles.
Public transportation · 1933
Franchised urban bus network
KMB's core offering is a large network of franchised bus routes serving Kowloon and the New Territories, with additional cross-harbour routes. The network combines ordinary, express, peak-hour, late-night and district services. Route numbers and letter suffixes identify geographic areas, service patterns and special operating purposes.
Public transportation · 1972
Cross-harbour services
KMB operates cross-harbour routes through the Cross-Harbour Tunnel, Eastern Harbour Crossing and Western Harbour Crossing. Some services are jointly operated with other franchised operators, while others are operated solely by KMB. These routes connect Kowloon and the New Territories with Hong Kong Island.
Fare product · 2018
KMB Monthly Pass
Introduced in 2018, the KMB Monthly Pass is an Octopus-based fare product for eligible KMB services. The reference material describes a fixed monthly price and daily ride allowances, while excluding MTR feeder bus services operated by KMB.
Zero-emission transportation · 2024
Battery-electric bus services
KMB is adding battery-electric buses to its predominantly double-deck fleet. Zero-emission vehicles use an Electric Green livery, and the operator has deployed Alexander Dennis Enviro500EV buses in regular route service as part of its fleet transition.
Marketing campaigns
- 2020Electric Green zero-emission livery
Hong Kong
KMB introduced a vivid green visual treatment for zero-emission buses to distinguish its electric vehicles from the conventional fleet.
Outcome. The livery became associated with KMB's battery-electric bus programme.
- 2017Red-and-silver identity renewal
Hong Kong
KMB introduced a red-and-silver bus livery and simplified wordmark as part of a corporate identity refresh.
Outcome. The new identity replaced the prior visual treatment while retaining the KMB name.
- 1996Modern-image advertising campaign
Hong Kong
KMB launched an advertising campaign to promote a more modern public image. The campaign coincided with the company's development of commercial advertising on its buses.
Outcome. The campaign supported a more contemporary visual and commercial presentation of the operator.
Brand decisions
2024
Deploy Enviro500EV double-deckerProduct launchBackground
KMB is transitioning part of its fleet toward lower-emission and zero-emission propulsion.
Action taken
One Alexander Dennis Enviro500EV entered regular operation on route 112.
Aftermath
The deployment extended battery-electric technology into regular high-capacity route service.
2018
Launch KMB Monthly PassPrice changeBackground
KMB sought to provide a subscription-style fare option for regular passengers.
Action taken
The operator introduced an Octopus-based monthly pass for eligible KMB services.
Aftermath
Passengers gained an alternative to paying individual fares on qualifying journeys.
1997
Establish Long Win BusM&ABackground
The opening and development of airport-related infrastructure created demand for dedicated Lantau and airport bus services.
Action taken
KMB formed Long Win Bus as a subsidiary to operate services on the Lantau Link, including routes serving Hong Kong International Airport and Tung Chung.
Aftermath
The group gained a dedicated operating platform for airport and Lantau-area services.
1975
Introduce air-conditioned busesProduct launchBackground
Hong Kong's climate and passenger comfort requirements created demand for air-conditioned public transport.
Action taken
KMB placed Hong Kong's first air-conditioned bus into service.
Aftermath
Air conditioning became a long-term fleet standard, culminating in the withdrawal of the last non-air-conditioned bus in 2012.
1972
Enter cross-harbour operationsStrategyBackground
The opening of the Cross-Harbour Tunnel created a new route between Kowloon and Hong Kong Island.
Action taken
KMB began operating cross-harbour routes jointly with China Motor Bus.
Aftermath
KMB expanded beyond its traditional Kowloon and New Territories operating area.
1949
Adopt double-decker busesProduct launchBackground
Growing post-war demand required higher-capacity vehicles.
Action taken
KMB purchased 20 Daimler double-deckers from England.
Aftermath
The move established double-deck buses as a central part of Hong Kong surface transport.
Sources4 sources
Cite this profile: Cite the canonical profile. /brand-wiki/kowloon-motor-bus · Editorial policy · How profiles are compiled