Southeast Asia Hydrogen Generation Market Size and Share - Growth Analysis Report and Forecast Trends (2026-2035)

The Southeast Asia Hydrogen Generation Market attained a value of USD 8.75 Billion in 2025 and is projected to expand at a CAGR of around 4.3% through 2035. With the growing focus on renewable energy integration and green hydrogen production to reduce greenhouse gas emissions across ASEAN economies, increasing utilisation of hydrogen in industrial applications including oil refining, chemical synthesis, and steel production, rising government policy support for hydrogen as a clean energy carrier through National Hydrogen Strategies in Malaysia, Singapore, and Indonesia, and growing investments in electrolyser capacity and hydrogen infrastructure development, the market is set to achieve USD 12.40 Billion by 2035.

Key Market Trends and Insights

• Oil refining applications dominated the Southeast Asia Hydrogen Generation Market in 2025 with the largest end-use application share, driven by the region's significant petroleum refining capacity in Singapore, Malaysia, Indonesia, and Thailand that requires continuous hydrogen supply for hydrocracking, hydrotreating, and desulphurisation processes complying with increasingly stringent fuel quality standards.
• By Hydrogen Source/Type, the Grey Hydrogen segment held the largest market share in 2025 at approximately 95% of production as it is predominantly produced via natural gas steam methane reforming at low cost, though the Green Hydrogen segment is projected to witness the fastest CAGR over the 2026-2035 forecast period driven by surging renewable energy investment and government net-zero commitments.
• By Generation Technology, the Water Electrolysis segment is expected to register the highest CAGR over the forecast period, driven by rapid cost reductions in electrolyser equipment, falling renewable electricity prices enabling green hydrogen economics, and government support programmes providing capital subsidies for electrolysis-based green hydrogen projects aligned with ASEAN's net-zero transition commitments.

Market Size and Forecast

• Market Size in 2025: USD 8.75 Billion
• Projected Market Size in 2035: USD 12.40 Billion
• CAGR from 2026-2035: 4.3%
• Fastest-Growing Regional Market: Malaysia (Green Hydrogen)

The Southeast Asia Hydrogen Generation Market encompasses the production of hydrogen through steam methane reforming, coal gasification, water electrolysis, and biomass reforming for industrial, energy, and mobility applications. Southeast Asia collectively produces approximately 3.6 million tonnes of hydrogen annually, predominantly via natural gas-based steam methane reforming without carbon capture - classifying virtually all current regional production as grey hydrogen. The region's hydrogen demand is driven by its large petrochemical and refinery complex, with Singapore, Malaysia, Indonesia, and Thailand hosting integrated refinery-petrochemical clusters that collectively represent ASEAN's primary hydrogen consumption base. The market is valued at USD 8.75 Billion in 2025, with grey hydrogen's established production economics and industrial demand base providing market stability, while green hydrogen investment creates the long-term growth trajectory that will reshape the market through 2035.

The Southeast Asia hydrogen generation market growth is being catalysed by government-led green hydrogen strategies across ASEAN's leading economies. Malaysia's Gentari - the clean energy subsidiary of national oil company Petronas - has emerged as the region's most active green hydrogen developer, with projects in Malaysia, Indonesia, and India targeting renewable-powered electrolysis capacity. In October 2024, TTCL Public Company Limited secured a THB 1.2 billion contract to establish a green hydrogen plant in Laos, representing the expansion of green hydrogen infrastructure into the Mekong subregion. Singapore's Low Carbon Hydrogen strategy - backed by government funding and international development bank support - targets 50,000 tonnes of low carbon hydrogen supply annually by 2035, with import corridors being developed from Australia, Japan, and Middle Eastern suppliers. Malaysia's Hydrogen Economy Roadmap, Indonesia's National Hydrogen Strategy, and Thailand's Green Hydrogen Initiative collectively represent the policy architecture that will transition the region from grey to green hydrogen throughout the forecast period.

Key Takeaways

• Key Takeaway 1: Oil refining applications dominate Southeast Asia hydrogen consumption, reflecting the region's significant refinery capacity requiring hydrogen for hydroprocessing, desulphurisation, and product quality compliance.
• Key Takeaway 2: Grey Hydrogen dominates current production at approximately 95% market share through natural gas SMR, while Green Hydrogen is the fastest-growing segment as renewable electricity costs fall and government net-zero policies incentivise clean production.
• Key Takeaway 3: The market is projected to grow at a CAGR of 4.3% during 2026-2035, reaching USD 12.40 Billion by 2035, driven by industrial hydrogen demand growth and the accelerating green hydrogen transition supported by ASEAN government strategies.