The people
building SPARC.

Ingo is a clean-tech entrepreneur and one of the original architects of the voluntary carbon market, with three decades spent building the infrastructure behind environmental commodity markets across Southeast Asia.

As Co-founder of South Pole he spent 20 years building out its Southeast Asia business from Bangkok, helping structure some of the region's most significant climate finance transactions, including the first-ever Article 6 transaction & ITMO transfer and digital IREC - TVER asset swap, before stepping away from the company in 2026.

Ingo went back into start-up mode to build products and infrastructure for what the carbon markets need next: creating fit-for-purpose carbon market products to accelerate the energy transition; targeting hard-to-abate legacy GHG emissions from existing fossil power generation plants. He is also involved in building the infrastructure to make carbon and I-REC markets interoperable and tradable across registries and national borders.

Ingo publishes his thinking on these topics and engages with readers at substack.com/@ingopuhl.

Thomas Chrometzka is a serial entrepreneur and energy policy specialist. His career spans the energy sector, clean technology policy and commercial strategy, with a focus on turning policy ambitions into viable businesses.

At GIZ, Thomas led a team embedded in Thailand’s Ministry of Energy, working alongside energy ministries and regulators across Southeast Asia to open up opportunities for renewable energy. He saw where policy could open doors, and where it ran out of road. For change to stick, a viable business had to take over.

As Chief Strategy Officer at Enapter, he tackled that commercial challenge in green hydrogen: make the technology competitive, win customers and scale. These experiences shape his approach to the coal transition: less about winning an ideological argument, more about building a business proposition that works for the people who have to make it happen. That thinking is what is driving him while designing SPARC.