Hanoi Transport Corporation (Transerco) said the new buses would operate between Thanh Oai Industrial Cluster and Xuan Dinh, replacing the existing diesel fleet.
The VinFast EB8 buses, manufactured in 2026, each have a capacity of 60 passengers. Painted green and bearing the Hanoibus branding, they feature designs inspired by doves of peace and Hanoi's historic Khue Van Pavilion.
The vehicles are equipped with low floors for easier boarding, accessibility features for passengers with disabilities and other modern amenities.
From October 12, Route 33 will operate from 5 am to 9.15 pm in both directions, with buses running at intervals of 10-24 minutes.
The latest deployment follows the introduction of 53 electric buses on Routes 22A, 22B, 30 and 50 on October 5-6, and another 15 on Route 83 between Gia Lam and Hung Yen bus stations on October 8.
Transerco said the replacements would help it achieve its target of converting more than 51 per cent of its fleet to electric vehicles in 2026.
Under a plan issued by the Hanoi People's Committee in May, the city aims to convert its entire public bus fleet to electric and other green-energy vehicles by 2030.
All buses operating within Ring Road 4, covering central urban areas, must be electric by that deadline.
The city's planned conversion rate is 20-23 per cent in 2026, rising to 34-39 per cent in 2027, 47-54 per cent in 2028 and 79-89 per cent in 2029 before reaching 100 per cent in 2030.
To support the transition, Hanoi is developing charging infrastructure, reviewing electricity supply requirements and adjusting public transport contracts to encourage operators to invest in electric buses.
