Stream 01
Carbon Tech powered by AI
Solutions, including AI-powered ones, that decarbonise and future-proof real estate.
- 9 key areas
- Energy
- New materials
- Facility management
Big Data for Business · Since 2016
2025/26 contest complete
All three stages are completed.
Organised by B4B Limited, a Hong Kong social enterprise. The 10th annual contest since 2016.
About
An annual big data and AI contest since 2016, organised by B4B Limited, a Hong Kong social enterprise. It matches talents and enterprises through an accelerator programme.
Help talents, including Hong Kong youth, build careers in big data and AI.
Connect start-ups, talents and students with useful resources.
TECH for ESG
The 2025/26 challenge looks for technology that makes real estate greener and more efficient, across two streams.
Stream 01
Solutions, including AI-powered ones, that decarbonise and future-proof real estate.
Stream 02
Benefits
In-depth collaboration with leading companies and industry experts
Insights from leaders and guidance from mentors
Direct engagement with actual challenges and solutions
Stream 01 · Key areas
The 2025/26 Carbon Tech stream invited innovative solutions that help decarbonise and future-proof real estate.
Nine key areas
Stream 02 · Awards
Ten awards for teams and creators working where AI meets creative media.
Judging
Finalists and champions in each stream are selected on four criteria.
The decision of the judging panel is final.
Participation
Anyone. No restrictions on gender, age, company size, company history or background.
Enrollment
Past years
From big data for business to TECH for ESG: champions, mentors and partners on stage over the years.
Where we were · Recap
B4B Challenge finalists exhibited at InnoEX 2026, the Hong Kong International Innovation & Technology Expo, at booth 3B-B01, Hong Kong Convention and Exhibition Centre, in April 2026.
Booth
People
Dr Toa Charm
Principal advisor
Prof Herbert Chia
Honorary chairman and principal mentor
Mr Francois Lee
Founder and director
Mr Stephen KM Lau, JP
Personal data privacy advisor
Ms Candi Yeung
TECH for ESG
Entries closed 20 March 2026
The prospectus has the full contest details. Teams with an account can still sign in.
info@b4bchallenge.comBring experts from overseas and the Mainland to share with local talent.
Push solutions towards their wider cross-industry potential.
Build a lasting big data and AI community in Hong Kong and beyond.
Raise public awareness of the positive impact of big data and AI.
Teams and creators passionate about media and AI-related projects.
Real estate value chain
Real estate is more than bricks: it links workplaces, shops, stations and homes. The challenge asks how each part of the chain can become more sustainable through technology.
Hardware and comfort
Computing power, cost and motion sickness still hold virtual technology back.
Data
Immersive work needs high-resolution 3D models, real datasets, real-time transmission and AI dubbing with lip sync.
Where AI helps
Better hardware, lower costs, curated data and smarter interfaces make it accessible across industries.
Build networks and start collaborations
Exchange with professionals to broaden horizons and uncover opportunities
Broad exposure, featured at HKTDC InnoEX (first come, first served)
The stream looked for solutions that drive real carbon reduction, smarter operations, greener materials or more resilient buildings.
The stream was a chance for creators working where artificial intelligence meets creative media to gain international recognition and join a community of forward-thinking creators.
Free. Teams submitted what their chosen stream required.
Deadline
Application deadline: 12:00 noon, 20 March 2026 (Hong Kong time). Entries are now closed.
Timeline · 2025/26 complete
Closed 20 March 2026
Recruitment
March to April 2026
Mentorship, workshop, final assessment
13 to 16 April 2026
Exhibition and award ceremony at InnoEX 2026
2025/26 contest complete. Next edition announced here.
Project director
Ms Dorothy Ip
Event director
