Report

Tax Considerations for Critical Minerals Value Addition

With global demand for critical minerals increasing amid the energy and digital transitions, this report explores how resource-rich countries can capture greater domestic value from their minerals. It examines how fiscal strategies, supported by legal, regulatory, and infrastructure enablers, can help foster local processing, refining, and manufacturing.

October 29, 2025

Key Messages

  • Rising demand for critical minerals has revived interest of mineral-rich countries in processing activities that capture value further down the mining value chain. Countries have used various fiscal and non-fiscal measures to encourage value addition, with mixed results.

  • Primary enablers essential for successful mineral value addition include stable legal, regulatory, and institutional frameworks, reliable infrastructure, and a domestic market capable of absorbing processed products.

  • Secondary enablers include production- and cost-based fiscal incentives, complementing primary conditions. Royalty adjustments and cost-based measures can impact upfront capital costs and support downstream processing, but they need to be carefully calibrated.

This report examines the opportunities and challenges for resource-rich developing countries to develop downstream processing and manufacturing in the mining value chain. Focusing on a selection of critical minerals vital for the energy transition, it examines two central questions:

  • What specific fiscal and non-fiscal conditions enable countries to optimize the balance between revenues from producing the mineral and benefits from processing and refining the mineral further down the value chain in-country?
  • What tax and other related measures have countries adopted to increase in-country value across the mining value chain? 

The analysis considers factors that have helped or hindered previous attempts to increase domestic value lock-in in resource-rich countries and emphasizes practical approaches to designing fiscal policies that support sustainable value addition.

Report details

Topic
Mining
Taxation
Impact area
Sustainable Economies
Publisher
IISD
Copyright
IISD, 2025
Report

Sustainable Asset Valuation of Mangroves and Wetlands for Coastal Resilience in Mozambique

An economic valuation of ecosystem-based adaptation in three estuaries

Mozambique's coastline is highly vulnerable to cyclones, floods, and saltwater intrusion, while the loss of mangroves and wetlands has weakened natural protection for people and ecosystems. This Sustainable Asset Valuation (SAVi) assessment shows that investing in nature-based infrastructure (NBI) through the restoration and conservation of mangroves and wetlands can deliver up to USD 537.5 million in net benefits, strengthen biodiversity, and build long-term resilience to climate change.

October 21, 2025

Key Findings

  • Restoring ecosystems reduces climate losses. Mangrove and wetland restoration can cut flood and pollution damages by more than USD 120 million, shielding coastal communities and infrastructure from cyclones and saltwater intrusion.

  • NBI provides substantial economic value. Every USD 1 invested in restoring Mozambique's mangroves and wetlands can return up to almost USD 14 in benefits, protecting people and ecosystems while strengthening the national economy.

  • Restoring ecosystems makes coastal communities safer and ecosystems stronger. Healthy mangroves and wetlands slow storm surges, protect farmland from saltwater, provide nursery grounds for fish, and restore habitats for wildlife—helping people and nature recover faster after extreme weather.

Mozambique ranks among the world's most climate-vulnerable countries. Cyclones, floods, and saltwater intrusion regularly devastate coastal communities, damaging homes, farmland, and infrastructure. The loss of mangroves and wetlands has further eroded natural protection, leaving millions of people exposed to climate and environmental risks. 

To address these challenges, the Government of Mozambique, supported by the United Nations Environment Programme, is developing a proposal to the Green Climate Fund that promotes ecosystem-based adaptation in three estuaries: Bons Sinais, Zambezi, and Limpopo. The plan combines the restoration of 7,500 hectares of wetlands, restoration of 3,800 hectares of mangroves, and conservation of 30,000 hectares of coastal ecosystems. These measures would directly benefit around 211,000 people and indirectly support more than 1 million people by improving water quality, sustaining fisheries, and reducing disaster risks. 

The NBI Global Resource Centre conducted a SAVi assessment to test the economic, environmental, and social performance of these measures compared to a business-as-usual scenario. The assessment considered several climate and carbon price scenarios to estimate how ecosystem restoration could lower flood and pollution costs, enhance fisheries, and capture carbon. 

The results show that restoring and conserving mangroves and wetlands is a high-return investment. For an estimated investment of USD 41.7 million, the interventions could generate up to USD 537.5 million in benefits—around USD 14 in value for every dollar spent. The Limpopo estuary delivers the highest returns because of its larger exposed population, while Bons Sinais and Zambezi also provide strong resilience and ecosystem gains. 

Beyond the economic results, the interventions would help re-establish vital habitats for fish and wildlife, prevent soil and water degradation, and improve the capacity of communities to recover after storms. These findings demonstrate that NBI is one of Mozambique's most cost-effective strategies for safeguarding people, strengthening biodiversity, and advancing national climate goals.

Report

Strategic Minerals for Africa's Industry

Insights and pathways for the present and future

Africa's mineral wealth can drive industrial growth, yet value addition remains limited and geoscience data gaps persist. This series profiles several strategic minerals, covering demand, recycling, Africa's mining and refining share, trade risks, environmental, social, and governance (ESG) issues, as well as pathways for equitable resource-based industrialization.

October 17, 2025

Key Messages

  • Africa's mineral endowment is strong, but value capture is weak: extraction dominates while refining, fabrication, and manufacturing lag. Equitable resource-based industrialization requires closing gaps in power, infrastructure, skills, technology, and finance.

  • Regional integration and smarter policy and finance are decisive: African Continental Free Trade Area–driven hubs, shared infrastructure, use of blended finance and strategic corridors, and harmonized standards can lift countries up the value chain together.

  • Strong ESG performance, artisanal and small-scale mining formalization, and traceability are becoming market entry tickets. Adoption of renewables in energy-intensive processing is key in increasing sustainability competitiveness and enabling African producers to access premium, low-carbon markets.

  • The emerging, voluntary G20 Critical Minerals Framework advances diversified, responsible supply chains and beneficiation at source, creating space for African priorities in the final texts of the framework and in partnerships to come between African producers and major importing countries.

Africa's mineral wealth can power industrial growth, yet much potential remains untapped as extraction dominates and value addition is limited. These publications—jointly developed by the Intergovernmental Forum on Mining, Minerals, Metals and Sustainable Development and the African Development Bank—present insights on nickel, copper, cobalt, lithium, bauxite, phosphate, platinum group elements, iron ore, rare earth elements, manganese, graphite, and vanadium. 

Each factsheet profiles properties, global recycling, demand outlooks, and Africa's share of mining, refining, and exploration. They also map supply chains and trade, assess market risks and leverage points, and flag social and environmental challenges. The analysis situates these minerals within equitable resource-based industrialization aligned with the Africa Mining Vision, noting constraints from underinvestment in geoscience and structural factors across energy, skills, technology, infrastructure, and finance. 

Three trends are currently reshaping options for resource-rich countries: (a) security of supply for minerals essential for low-emissions energy systems, (b) clean energy cost parity, and (c) a shift toward more equitable resource partnerships.

Report details

Topic
Climate Change Mitigation
Mining
Project
The Intergovernmental Forum on Mining, Minerals, Metals and Sustainable Development (IGF)
Impact area
Climate
Sustainable Economies
Publisher
African Development Bank
Copyright
African Development Bank, 2025
Report

Fuel Taxation in Aviation

Pathways for reform among COFFIS member states

This report examines 32 Air Service Agreements (ASAs) concluded between COFFIS member states to determine the necessary steps before implementing a tax on the uptake of aviation fuel.

November 3, 2025

Recommendations

  • For international air transportation, most countries already have several options to introduce a fuel tax for airlines operating under ASAs, which do not include definite legal barriers.

  • Countries bound by ASAs containing either full fuel tax prohibitions or non-discrimination provisions need to reform their ASAs to introduce taxation.

  • To clarify the intent behind reciprocal fuel tax exemptions, countries may issue memorandums of understanding stating that these do not create a legal barrier to introducing a fuel tax.

  • While bilateral reform can be achieved, a swifter way is a global or multilateral Joint Agreement that allows for the bulk reform of tax provisions present in different ASAs.

Although international aviation contributes approximately 2.4% of global annual carbon dioxide emissions, fuel used in this sector is rarely taxed. A tax on aviation fuel could support the sector’s climate targets by promoting greater fuel efficiency, encouraging the uptake of sustainable aviation fuels, and ensuring fairer competition with less emission-intensive transport modes. 

The 1944 Convention on International Civil Aviation (Chicago Convention), applicable to all International Civil Aviation Organization member states, does not prohibit the introduction of aviation fuel taxes. However, legal barriers may arise from bilateral and multilateral ASAs. 

This report examines 32 ASAs concluded between COFFIS member states to determine the necessary steps before implementing a tax on the uptake of aviation fuel. None of the reviewed ASAs restricts the taxation of fuel for domestic aviation. The ASAs are categorized into four groups based on their treatment of fuel taxation. Only two categories require reform prior to implementing a tax for international flights: (i) agreements containing a full tax prohibition and (ii) those imposing non-discrimination or similar clauses. 

For European Union (EU) member states, legal barriers primarily stem from the EU Energy Taxation Directive (ETD). However, if the EU enters an international agreement that introduces different fuel tax rules, such an agreement would prevail over the ETD, opening the door for aviation fuel taxation across all EU member states. 

The most effective way to overcome these legal barriers, for EU and non-EU states, is through a Joint Agreement among a coalition of the willing. States have used similar approaches to successfully amend large numbers of bilateral treaties in other areas, such as investment and tax law. 

This report also quantifies emissions associated with three ASAs concluded by the United Kingdom and estimates the tax revenue potential if a fuel tax were implemented for these routes.

Report details

Report

An Industrial Policy Renaissance

The challenges and opportunities of going green

A new wave of green industrial policies comes with a set of important economic and social trade-offs for the implementing countries as well as the cross-border impacts for their trading partners.

October 14, 2025

Key Messages

  • Countries worldwide are adopting industrial policies to achieve environmental, competitiveness, and security objectives, but those policies inevitably impact their trading partners.

  • The main challenge for international cooperation on new green industrial policies is making them work for developing countries.

  • International dialogue and cooperation are imperative to guide the design of industrial policies that can best achieve climate objectives while causing no harm to the growth and development of others.

This publication explores the global resurgence of industrial policy with a focus on green industrial policy that aims to combine economic competitiveness with environmental sustainability. It defines green industrial policy as government intervention to restructure economies toward low-carbon and resource-efficient systems while maintaining prosperity and jobs. The publication reviews the historical evolution of industrial policy, from early import-substitution/export-promotion strategies to the Washington Consensus and its rejection of state intervention, before charting the return of industrial policies driven by climate imperatives, geopolitical rivalry, and supply chain disruptions. 

Through case studies of China, the United States, the European Union, Canada, Brazil, and South Korea, the report highlights diverse national approaches, their successes and setbacks, and the tensions they create in global trade. The analysis emphasizes both the economic opportunities and risks of unequal benefits and adverse impacts on trading partners, as well as the environmental and competitiveness gains. The report concludes with key questions for national and international policy-makers, stressing the need for transparent, equitable, and cooperative frameworks to maximize global welfare while ensuring fair opportunities for developing countries.

Participating experts

Report

Sustainable Asset Valuation of the Nature-Based Infrastructure Transformation Program for Kisumu, Kenya

Nature-based infrastructure to improve Lake Victoria basin's ecosystem health

The nature-based infrastructure (NBI) transformation program in Kisumu, Kenya, brings together agroforestry, sanitation, and fisheries to restore ecosystems and strengthen community resilience. A Sustainable Asset Valuation (SAVi) assessment shows that over 26 years, the program could generate USD 940 million in net benefits—about USD 3 in benefits for every dollar spent—while cutting health costs, creating new livelihoods, and opening opportunities for carbon finance.

October 6, 2025

Key Findings

  • Investing in nature pays back. By combining agroforestry, WASH interventions, and fisheries, Kisumu could gain nearly USD 940 million in benefits over 26 years—around USD 3 in value for every dollar spent.

  • Healthier communities mean stronger economies. Better sanitation could prevent nearly USD 480 million in health costs by reducing waterborne diseases and improving quality of life.

  • Nature creates new funding opportunities. Carbon stored through trees and ecosystems is valued at more than USD 62 million, which is enough to cover capital costs and attract financing through carbon credits.

Kisumu County, on the shores of Lake Victoria, faces growing climate and environmental pressures. Floods, droughts, soil erosion, declining fisheries, and inadequate sanitation are undermining agriculture, food security, and public health. Runoff and invasive species further degrade the lake's ecosystem, deepening inequalities and weakening resilience. 

To address these challenges, Trust 2 Impact is piloting the NBI transformation program in the Nyando catchment. The program combines agroforestry and reforestation; riparian restoration; water, sanitation, and hygiene (WASH) management; and fish hatcheries to restore ecosystem health, improve water quality, reduce deforestation, and provide new livelihood opportunities. 

The NBI Global Resource Centre conducted a SAVi assessment of the program, in collaboration with Trust 2 Impact, to assess the initiative's performance compared to a business-as-usual baseline. Four NBI scenarios were evaluated: one combines all interventions, and three focus individually on agroforestry, WASH, and fisheries. 

The results confirmed that NBI is both cost-effective and transformative. Over 26 years, the integrated scenario could generate nearly USD 940 million in net benefits, equivalent to about USD 3 in value for every dollar invested. Sanitation measures could avoid nearly USD 480 million in health costs, fisheries interventions could deliver the highest return per dollar invested, and agroforestry and reforestation could generate steady revenues from crops, fruits, and carbon storage. Carbon valuation could add USD 62.85 million, surpassing capital expenditures and highlighting the potential of carbon credits as a financing tool. 

By linking ecological restoration with health, food security, and investment opportunities, the NBI transformation program offers a scalable model for climate resilience in Kenya and across East Africa.

Report

Innovative Financial Instruments for the Mobilization of Private Sector Investment in Climate Change Mitigation and Adaptation in Developing Countries

This report analyzes eight innovative financial instruments that can mobilize private finance for climate action in developing countries and least developed countries (LDCs). It outlines their strengths, limitations, and conditions for success, with guidance on how public finance can help scale their use.

October 2, 2025

Key Findings

  • The scalability of climate finance instruments depends on ease of implementation, legal frameworks, institutional capacity, market infrastructure, transparency, and risk management tools that improve investment appeal and enable replication.

  • Innovative climate finance tools show promise but face limits like complex design and low capacity. Success depends on strong leadership, enabling environments, and transparency. LDCs may need phased approaches to build conditions for private investment and effective use.

  • Donors and partners can support climate finance by assessing country-specific needs, removing barriers, improving coordination, enabling environments, strengthening data and skills, and piloting innovative instruments to attract private investment.

Mobilizing finance for climate action—including private sector investment—is essential to achieving the goals of the United Nations Framework Convention on Climate Change and the Paris Agreement. This report explores eight innovative financial instruments with strong potential to attract private finance for adaptation and mitigation in developing countries and LDCs. It assesses each instrument's strengths, limitations, and enabling conditions, with a focus on how public finance can be used to scale their application. The instruments include the following:

  • Adaptation Benefit Mechanism
  • biodiversity credits
  • carbon taxes
  • carbon trading mechanisms
  • credit guarantees
  • debt-for-nature/climate resilience swaps
  • pooled investment funds
  • sovereign green and sustainability-linked bonds

Each offers a distinct pathway to leverage private sector engagement in climate-resilient development.

Report

Holding Course, Missing Speed

Protecting progress on ending fossil fuel finance and unlocking clean energy support

This report analyzes progress by Clean Energy Transition Partnership (CETP) signatories in shifting international public finance from fossil fuels to clean energy in 2024 and assesses emerging trends 2 years after the implementation deadline. It finds that CETP members cut fossil fuel finance by up to 78% but need to rapidly scale up finance for renewables and close loopholes that allow continued fossil finance.

September 29, 2025

Key Findings

  • CETP members reduced international support for fossil fuels by up to 78% in 2024, to USD 4.7 billion. This progress demonstrates the tremendous power and positive impact of the CETP as a vehicle of the clean energy transition.

  • CETP finance for renewable energy increased by only USD 3.2 billion in 2024 compared with 2019–2021, meaning less than one-fifth of the funds shifted from fossil fuels were redirected to clean energy.

  • Signatories should adopt a collective target of at least USD 42 billion for scaling clean energy finance in emerging markets and developing economies under the CETP Clean Energy Action Plan and adopt institutional or whole-of-government policies and strategies to ensure this finance is fair.

At the United Nations Climate Change Conference (COP 26) in Glasgow, 39 countries and public finance institutions signed the CETP, committing to end international public finance for fossil fuels by the end of 2022 and to fully prioritize finance for clean energy. With Norway and Australia joining at COP 28 and the United States leaving the commitment in February 2025, the partnership now consists of 40 members. 

This report analyzes CETP signatories' international finance for fossil fuels and clean energy in 2024—2 years since the implementation deadline. The report finds the following:

  • Most signatories continued to cut fossil fuel finance in 2024. In line with trends from 2023, members reduced international support for fossil fuels by up to 78% in 2024, to USD 4.7 billion. This progress demonstrates the tremendous power and positive impact of the CETP as a vehicle of the clean energy transition.
  • Only 10 out of 17 high-income signatories have fully aligned their energy finance policies with the CETP pledge. To fully implement the CETP, signatories should close loopholes that allow continued fossil fuel financing.
  • Progress on scaling up clean energy finance remains slow. CETP finance for renewable energy increased by only USD 3.2 billion in 2024 compared with 2019–2021, meaning less than one-fifth of the funds shifted from fossil fuels were redirected to clean energy.
  • Despite the momentum in winding down fossil fuel finance, the initiative is facing significant headwinds. Rising geopolitical tensions and the United States' exit in 2024 make CETP gains more fragile. 

To safeguard current progress, signatories should adopt a collective target of at least USD 42 billion for scaling clean energy finance in emerging markets and developing economies under the CETP Clean Energy Action Plan and adopt institutional or whole-of-government policies and strategies to ensure this finance is fair, advances a just transition, and prioritizes transformative subsectors, such as grids and storage.

Report details

Topic
Climate Change Mitigation
Energy
Sustainable Finance
Impact area
Climate
Publisher
IISD
Copyright
IISD, 2025
Report

Tracking Progress on Monitoring, Evaluation, and Learning for National Adaptation Plan Processes

This synthesis report reviews how 62 countries have integrated monitoring, evaluation, and learning (MEL) into their national adaptation plan (NAP) documents. It also identifies common trends, gaps, and emerging good practices in countries' MEL design and implementation.

September 24, 2025

Key Messages

  • While a majority of NAPs state that their MEL system implementation is in progress, completed, or planned, only 39% of NAPs specify a timeline, work plan, or roadmap to implement them.

  • Only 45% of countries mention gender-responsive indicators as developed, in progress, or planned in their NAPs—highlighting an incomplete effort in countries' ability to capture whether NAPs reduce risks for the most vulnerable.

MEL systems are a critical component of both the NAP process and the NAP document. They are designed to assess whether adaptation strategies are achieving their intended outcomes, understand how and for whom they are effective and inform necessary adjustments based on evidence. 

Not only is MEL a dedicated phase of NAP processes, but these systems also support accountability and institutional learning across the four phases of the iterative adaptation cycle: impact, vulnerability, and risk assessments, planning, implementation, and MEL. It also contributes to strengthening the overall effectiveness of climate resilience efforts while helping to minimize the risk of unintended consequences. Moreover, MEL systems for NAP processes also generate essential information for international climate reporting under the Paris Agreement. 

This first synthesis report by the NAP Global Network reviews how 62 countries have integrated MEL into their NAP documents, based on the information provided in their NAP submissions to the United Nations Framework Convention on Climate Change as of June 30, 2025. It provides a snapshot of how countries describe the status and design of their MEL systems across the four phases of the iterative adaptation cycle. The report also identifies common trends, gaps, and emerging good practices, with case studies illustrating promising approaches to strengthening MEL design and implementation.

Report details

Topic
Climate Change Adaptation
Project
NAP Global Network
Impact area
Climate
Publisher
IISD
Copyright
IISD, 2025
Report

The Production Gap Report 2025

The Production Gap Report 2025 finds that 10 years after the Paris Agreement, governments plan to produce more than double the volume of fossil fuels in 2030 than would be consistent with limiting global warming to 1.5°C, steering the world further from the Paris goals than the last assessment in 2023. 

September 22, 2025

This is the fifth edition of The Production Gap report, which was first issued in 2019. It tracks the misalignment between governments' planned fossil fuel production and global production levels consistent with limiting global warming to 1.5°C or 2°C. The report, which is externally peer reviewed, represents a collaboration of several research and academic institutions, including inputs and reviews from more than 50 experts spanning all parts of the globe. This year's publication updates the analysis presented in the 2023 edition, profiling the plans and projections of 20 major fossil fuel-producing countries, representing a mix of the world's largest producers, large producers with readily available data, and producers with strongly stated climate ambitions.

Report details

Topic
Climate Change Mitigation
Energy
Just Transition
Impact area
Climate
Publisher
Stockholm Environment Institute
Copyright
Stockholm Environment Institute, 2025