Powerhouse Innovation helped Mitsui make three strategic investments in climate tech companies tackling some of the hardest-to-abate emissions sectors.

Deploying direct air capture (DAC) and sustainable aviation fuel (SAF) at scale faces well-known challenges: high capital and energy costs, limited offtake contract opportunities, and complex unit economics. The companies Mitsui invested in are each addressing these challenges in different ways:

• Heirloom: Uses low-cost limestone instead of expensive synthetic sorbents to absorb CO₂, reducing upfront capital requirements and long-term operating costs.

• Twelve: Builds flexible, low-temperature CO₂ electrolyzers that respond to fluctuating power prices, lowering the cost of e-fuel production.

• Infinium: Has moved faster than peers to commercial scale, launching the world’s first e-SAF facility in 2023 with a larger project in development—demonstrating both scalability and buyer traction.
  These investments aligned with Mitsui’s focus on carbon management and advanced their efforts to build a strong, future-ready climate tech portfolio.