- One of only a handful of companies globally to have made two independently verified ERW deliveries.
- 2,500 audited tonnes delivered to Mitsui O.S.K. Lines, setting a new benchmark for high-integrity carbon removal from the Global South.
- Largest-ever delivery of ERW credits certified under Isometric's Enhanced Weathering Protocol, the most scientifically rigorous on the market
Bangalore, India — 24th, April 2026: Alt Carbon, a Planetary Intelligence startup, today announced the delivery of 2,500 verified Carbon Dioxide Removal (CDR) credits, equivalent to the carbon footprint of roughly 3,500 one-way economy flights from Delhi to Tokyo, to Mitsui O.S.K. Lines, Ltd. (MOL). This marks Alt Carbon’s second consecutive Enhanced Rock Weathering (ERW) delivery to the Japanese shipping giant, and the largest-ever delivery of ERW credits certified by Isometric, the world’s leading certifier of carbon removal.
The second batch of credits has been delivered from Alt Carbon’s Darjeeling Revival Project (Alt x MOL) — an ambitious initiative to revive Darjeeling’s heritage tea estates and neighboring agricultural networks including rice paddies. Enhanced Rock Weathering works by spreading waste basalt across agricultural land, where it reacts with CO₂ dissolved in rainwater to form stable bicarbonate ions — carried through river systems to the ocean and stored as calcium carbonate for over 10,000 years. The process simultaneously improves soil health, pH balance, and crop yields for participating farmers.
MOL's partnership with Alt Carbon aligns with its BLUE ACTION 2035 agenda, which positions the environment as one of its three core strategies. The Darjeeling Revival Project offers a long-term collaboration with MOL in their mission to achieve net-zero greenhouse gas (GHG) emissions group-wide by 2050. By supporting early-stage projects in nascent technologies like ERW, MOL has been pioneering scientific breakthroughs to bring down the cost of negative emissions technologies.
Execution over announcements: The case for delivery
The CDR market has grown from $300 million to over $10 billion in transacted volumes in just three years. Yet the gap between committed volumes and verified deliveries remains one of the most significant credibility challenges the sector faces. Alt Carbon's latest delivery of Isometric-certified credits to MOL is a direct answer to that gap. Only a small number of companies globally have achieved two independently verified ERW credit deliveries — and Alt Carbon is the only one to have done so in Asia, operating from India's agricultural heartland.
What sets this delivery apart is the standard it is held to. Isometric's Enhanced Weathering Protocol requires direct measurement of soil and porewater samples, robust statistical analysis of treatment and control plots, and independent third-party verification. The data behind each of these 2,500 credits is publicly available on the Isometric Registry, creating a permanent and independently auditable record of every tonne removed.
Since its first delivery to MOL in November 2025, Alt Carbon has expanded rapidly. The Darjeeling Revival Project now spans over 60,000 acres across tea estates, rice paddies, and diverse crop geographies, working with more than 35,000 farmers across 60+ gram panchayats, and creating 250+ green jobs in West Bengal. Field deployments have shown measurable improvements in soil health, pH balance, and average crop yields across participating farms.
Alt Carbon has two laboratories across Darjeeling and Bangalore. This includes Shonku Labs at the Bangalore Headquarters in the Indian Institute of Science (IISc), and the Darjeeling Climate Action Lab (D-CAL), a recently launched 15,000 sq. ft. research facility in the foothills of the Himalayas.
The in-house laboratory capacity and field monitoring systems help quantify carbon fluxes, soil chemistry changes, monitor environmental safeguards, and build novel soil and river datasets to model Planetary Intelligence. D-CAL will overcome the constraints of sampling, testing and verification methodologies by processing up to 100,000 samples annually by 2026. By expanding laboratory throughput and field measurement capacity, Alt Carbon aims to reduce the cost of Measurement Reporting and Verification (MRV) over time, helping lower the overall cost of high-integrity carbon removal credits. Alt Carbon has analysed and processed more than 20,000 samples to date and operates one of the highest-throughput ERW sample analysis facilities in India.
Ongoing academic collaborations with the Indian Institute of Science (IISc) and Ashoka University continue to deepen the scientific rigour underlying each delivery, with all methodologies subject to public scrutiny on the Isometric Registry.
Quotes
"ERW is one of the hardest CDR methods to execute on — the geochemical complexity and operational rigour are immense. Alt Carbon's ability to deliver deepens our confidence in their long-term capacity to support MOL Group's net-zero journey." — Daisuke Fujihashi, General Manager, Carbon Solution Development Unit, MOL
"When Prime Minister Modi signed the JCM agreement with Japan, Alt Carbon’s Darjeeling Revival Project was featured in it. The future of decarbonisation in South Asia is going to be led by the Japan-India Climate Corridor. We are building the carbon removal infrastructure to enable this transition. ERW is one of the hardest CDR pathways to execute, but we now have a team that has a stronger understanding of soil chemistry, river hydrology, ocean alkalinity, and geochemistry to earn a verified credit. Our second delivery to MOL, the largest of its kind, is proof that India can do this. We can make our agricultural lands a hub for carbon removal, and we are only getting started." — Shrey Agarwal, Co-Founder and CEO, Alt Carbon
"Enhanced Weathering is scaling, and this delivery is a clear signal of that progress, as the largest single delivery of Isometric-certified credits for the pathway to date. Every credit and its underlying data is publicly available on the Isometric Registry, providing the rigor and transparency Enhanced Weathering needs to continue to grow." — Tom Sellers, Head of Registry Operations, Isometric
Notes to the Editor
For further information, please contact the Alt Carbon press office:
Adithya Venkatesan — [email protected]
About Alt Carbon
Alt Carbon is a deeptech science and data company, building infrastructure for Planetary Intelligence. We aim to make South Asia a hub for Carbon Dioxide Removal (CDR) through technology pathways like Enhanced Rock Weathering and Biochar. We work with farmers and scientists in the Global South, to turn underutilized land into carbon sinks. Our flagship initiative, the Darjeeling Revival Project (DRP), is a first-of-its-kind effort to unite climate action with cultural and ecological restoration — by reviving degraded soils, restoring livelihoods, and rebuilding ecosystems. We also launched the Bengal Renaissance Project (BRP), an industrial biochar program that is building a network of biomass banks, and pyrolysis and gasification plants across Eastern India, with a mission to weave hope back into the lands of India.
Alt Carbon is based out of Bangalore/Darjeeling & was founded by tea planter siblings Sparsh & Shrey Agarwal. Our latest seed round for $12m was led by Lachy Groom.
For more information please visit https://www.altcarbon.com/ or follow via LinkedIn or X
About MOL
MOL is a leading shipping company, operating on a global scale with more than 900 vessels in service. The company develops various social infrastructure businesses centered on ocean shipping, as well as technologies and services to meet ever-changing social needs including environmental protection. The MOL fleet includes dry cargo ships, liquefied natural gas (LNG) carriers, car carriers, and tankers. In addition to the traditional shipping businesses, MOL also offers wellbeing & lifestyle businesses such as real property, terminal operation, and ferry service, as well as social infrastructure businesses such as logistics and offshore wind power.
To achieve net zero emissions by 2050, MOL is not only reducing emissions from its own operations but also contributing to society’s decarbonization through clean energy supply chains, including negative emissions.
With one of the largest merchant fleets and over 140 years of history, experience, and technology, MOL will make a leap forward to become a global social infrastructure company, support people's daily lives from the blue ocean, open the way to a prosperous future, and deliver new value to all stakeholders.
About Isometric
Isometric is the certifier for carbon removal, superpollutant reduction, and environmental attribute certificates. Its Certify platform combines AI-powered verification with scientific rigour to unlock access to capital for project developers. Its Registry tracks every certificate from issuance to retirement with full transparency, enabling buyers to manage their net zero portfolios in one place.
Backed by the largest in-house science team of any certifier and a 400-member Science Network, Isometric works with more than 150 project developers and has been selected to certify more than 10 million tonnes of carbon removal.