What Google and McKinsey’s Indonesia Offtake Signal About the Next Wave of Carbon Removal Finance

Why Forward Purchase Deals Are Becoming the New Bankability Test for Nature-Based Projects

Symbiosis, launched in 2024 by Google, Meta, Microsoft, and Salesforce, is a clear sign that buyers are no longer just testing the market. They are building demand in advance through advance market commitments and offtake agreements, with a target of contracting up to 20 million tonnes of nature-based carbon removal credits by 2030.

That matters because forward purchase agreements are becoming a practical bankability test. For developers, the real question is how to turn a PPA-like carbon contract into something financeable, with a clear price, volume, delivery milestones, and remedy clauses for delays. In other words, the contract has to create revenue certainty and project bankability, not just intent.

McKinsey’s point is straightforward. Long-term offtake gives the buyer price and volume certainty, while giving the developer revenue certainty. That reduces market risk in a young sector where supply can lag commitments by years.

For a corporate buyer, a forward offtake can help cover future residual emissions. For a project sponsor, the same contract can support due diligence, project finance, pre-development capex, and working capital. That is why offtake finance is moving closer to mainstream project structuring.

The key shift is simple. Buyers are no longer asking whether nature-based removals exist. They are asking whether the deal can be financed, delivered, and defended. Once that is clear, the next question is who these buyers are, how they select projects, and what their choices reveal about the market.

What the Symbiosis Coalition Reveals About Buyer Behavior in the Carbon Removal Market

The Symbiosis Coalition shows a move from opportunistic purchases to portfolio procurement. A small group of anchor buyers is working toward a collective goal over multiple years, with a strong focus on high-quality credits. In 2025, Symbiosis reviewed more than 180 project submissions and signed its first agreement with Mombak.

That is a meaningful signal for the market. Buyer coalitions reduce demand risk for developers, but they also raise the bar. The result is a tougher selection process built around procurement standards, high-integrity nature-based removals, and strict MRV requirements.

The first offtake signed in 2025 matters because it shows what is being rewarded. The market is not only responding to climate narratives. It is rewarding projects with pipeline depth, governance, and delivery capability.

Large buyers are starting to treat carbon removal as a strategic procurement category. The logic looks closer to clean electricity or SAF than to ad hoc offset buying. Selection is likely to depend on permanence, additionality, leakage, claims readiness, and reputational risk.

That is the important buyer-side lesson. Coalitions are not just pooling demand. They are setting the rules for what counts as acceptable supply. If demand is becoming more sophisticated, the next question is where credible and scalable supply can come from, and why Indonesia is now on the radar.

Why Indonesia Is Emerging as a Strategic Hub for Future Supply of Nature-Based Credits

Indonesia stands out because McKinsey estimates it has one of the world’s largest potentials for nature-based solutions, with more than 1.5 GtCO2 of potential in carbon credit. That supports the case for the country as a future nature-based supply hub for reforestation, mangrove restoration, and peatland carbon credits.

The strategic value is not only ecological. It is also about carbon market infrastructure, REDD+ readiness, Article 6 alignment, and the ability to build a tropical restoration pipeline that buyers can actually contract against. For global buyers, that combination matters as much as land availability.

The market structure is also maturing. On 20 January 2025, Indonesia inaugurated its first international trading of carbon units through IDXCarbon, alongside stronger SRN, MRV, SPE-GRK, and authorization and corresponding adjustment processes. That is a sign that exportability may improve over time.

IDXCarbon also reports more than 1.9 million tCO2e in trading volume, IDR 93.8 million in value, 10 registered projects, and 155 user entities. Those numbers suggest an ecosystem that is still early-stage, but already operating.

The practical takeaway is clear. Indonesia is not just a source of future supply. It is becoming a test case for whether nature-based credits can move from project concept to tradable asset. That leads to the next issue buyers will focus on: integrity.

The Integrity Questions Buyers Will Ask Before These Credits Reach Delivery

Integrity due diligence is the real gatekeeper. McKinsey highlights additionality, permanence, quantification, leakage, and robust MRV as core requirements for nature-based credits. Without them, a forward contract does not become a credible asset for claims or internal accounting.

Buyers and auditors will also ask about the MRV system, corresponding adjustment, buffer pool design, baseline methodology, leakage risk, permanence risk, social safeguards, and the role of Indigenous and local communities. These are not side issues. They are the questions that decide whether a contract can survive scrutiny.

The UNFCCC data gives a useful reference point. Indonesia reported REDD+ results for 2021 to 2023 of 68.98 MtCO2e per year against a forest reference level of 192.92 MtCO2e per year. That supports the case that monitoring exists, while also showing why transparency and capacity building still matter.

A sophisticated buyer will also ask whether the project is registered in the national system, whether it has export authorization, how reversal risk is handled for mangroves and peatlands, and which standard is used to avoid double counting. Those checks are what separate a tradable credit from a risky promise.

If these checks become the norm, the impact goes beyond one deal. It starts to shape developer strategy, policy design, and carbon claims governance worldwide.

What This Means for Developers, Policymakers, and Corporate Climate Claims Worldwide

Forward purchase deals are becoming a market-making mechanism. They do more than finance individual projects. They help define the commercial standards for the wider nature-based carbon removal market, especially in countries with strong potential and evolving infrastructure.

For developers, the winning strategy combines pipeline quality, MRV readiness, land tenure clarity, community benefit-sharing, and a realistic delivery schedule. It also means speaking the language of corporate procurement, not only the language of grants or philanthropy.

For policymakers, the Indonesia case shows that a credible carbon market needs a registry, trading rules, an authorization framework, and alignment with Article 6. Without those pieces, international capital is harder to access and more expensive to deploy.

For corporate buyers and transformation teams, the lesson is that future-proof climate claims need internal rules on quality thresholds, claim taxonomy, delivery risk, and portfolio diversification. Forward contracts can support net-zero pathways, but only if the governance is strong and the audit trail is clear.

The broader global point is this. Indonesia could become a test case for whether buyer coalitions can turn high-integrity natural supply into a real investable asset class. If that works, the model may be repeated in other emerging markets.