Market Definition and Fuel Characteristics
Palm Kernel Shells (PKS) are a byproduct of the palm oil industry and have emerged as a prominent biomass fuel due to their unique properties. Characterized by high calorific value, carbon neutrality, and ease of storage, PKS is widely used in biomass power plants. Its renewable nature and ability to reduce greenhouse gas emissions make it an attractive alternative to fossil fuels. Additionally, PKS utilization helps minimize waste from the palm oil industry, converting it into a valuable resource, thereby promoting circular economy principles.

The fuel specification that governs trade is defined by calorific value, moisture content, and ash behavior. PKS contains residual oil that contributes to a calorific value of approximately 16–18 MJ/kg, higher than many wood-based biomass fuels, and its low moisture content facilitates storage and transport . These properties make PKS suitable for both co-firing with coal in existing power stations and dedicated biomass combustion. However, quality varies by origin and handling: moisture content is a primary traded specification due to its impact on usable energy yield, while ash content and chlorine levels are monitored for corrosion and emissions compliance . No single global grading standard exists; transactions are structured around buyer specifications for moisture, ash, size distribution, and contamination limits .

According to the QYResearch report Global Biomass Fuel (PKS) Market Report 2024-2030, the global market size is projected to reach USD 2.74 billion by 2030, at a CAGR of 10.1% during the forecast period. Independent QYResearch data place the 2025 market at approximately USD 2.048 billion, forecast to reach USD 3.642 billion by 2032 at an 8.7% CAGR .

Competitive Landscape and Supply Structure
The global PKS market is highly fragmented yet competitive, with a mix of major players and numerous local distributors. Leading companies such as Iwatani Corporation, NISSIN BIO ENERGY, and DSNG (PT Dharma Satya Nusantara Tbk) accounted for 12.42% of global revenue in 2023. These players dominate through their established supply chains, certifications, and advanced processing capabilities.

The market‘s fragmentation is driven by abundant PKS production in Southeast Asia, where local distributors and exporters such as Provident Biofuels, Arkan Group, and UNIPALM play a vital role. These entities connect surplus supply from Indonesia and Malaysia to demand centers in Japan, South Korea, and Europe, highlighting the complex and decentralized market structure. The 12.42% top-three share is notably low for a commodity market with established trade flows, reflecting the absence of proprietary technology or scarce resource control: PKS is a byproduct, and its supply is dispersed across thousands of palm oil mills.

Iwatani Corporation represents the Japanese trading house model, leveraging its position as a diversified energy and industrial gas supplier to aggregate PKS from Southeast Asian producers and deliver to Japanese power utilities under long-term contracts. NISSIN BIO ENERGY specializes in biomass fuel trading with a focus on certification compliance, a capability that has become more valuable as Japan’s sustainability requirements have tightened. DSNG represents the Indonesian producer-exporter model, with integrated access to palm oil milling byproducts through its parent plantation operations.

A structural shift is underway in the competitive landscape. According to the Indonesian Palm Kernel Shell Entrepreneurs Association, major plantation groups including Wilmar, Adani Agri, and Sinar Mas have begun selling PKS directly to Japanese buyers, bypassing independent traders who historically built the export market by purchasing from mills . This disintermediation squeezes the trading tier‘s margins and concentrates supply chain control among vertically integrated producers. For Japanese buyers, direct relationships with producers offer supply security but reduce the competitive tension that independent traders provided.

Key Regions and Trade Flows
Southeast Asia, particularly Indonesia and Malaysia, serves as the production hub for PKS, with these two countries collectively producing the majority of the global supply. Indonesia‘s annual PKS production is approximately 14 million tonnes, of which about 35% is exported . While a substantial portion of PKS is consumed locally, surplus is exported to demand-driven markets.

Japan is the largest importer of PKS, driven by strong government incentives supporting renewable energy, the need for carbon-neutral power solutions, and its proximity to Southeast Asia. Japan imports approximately 5 million tonnes annually from Indonesia and Malaysia , with Indonesian exports to Japan alone at 4.5 million tonnes per year and projected to rise to 7 million tonnes annually by 2026 . In June 2025, Japanese companies pledged to import 640,000 tonnes of Indonesian biomass products, including PKS and wood pellets, in a transaction valued at approximately Rp1.04 trillion (EUR 63 million) .

South Korea and Europe also represent significant demand centers. Europe’s focus on sustainability drives the adoption of certified PKS, with the EU Renewable Energy Directive II establishing the legal framework for biomass sustainability. Under RED II, PKS is classified as an agricultural residue under Annex IX Part B, and existing installations must demonstrate lifecycle GHG savings of at least 70% compared to the fossil fuel comparator . The Americas, while a smaller player, are emerging as a potential market due to increasing biomass-based power generation.

Market Drivers and Restraints
Renewable energy policies constitute the primary demand catalyst. Many governments are implementing incentives and policies to promote carbon-neutral energy, making PKS a favored choice for biomass power plants. Japan‘s Feed-in Tariff scheme has been particularly consequential: it created a guaranteed above-market price for biomass-generated electricity, stimulating investment in PKS-fired capacity. However, the policy has also driven the certification requirements that now constrain supply.

High calorific value reinforces PKS’s attractiveness. Its efficient energy content makes it an attractive alternative to coal and other fossil fuels, particularly in co-firing applications where existing coal infrastructure can be utilized with minimal modification. The Indonesian Ministry of Trade estimates that using one tonne of PKS as industrial fuel can reduce carbon dioxide emissions by up to 0.94 tonnes .

Cost-effectiveness positions PKS competitively. PKS is relatively low-cost compared to other renewable energy sources, making it competitive in price-sensitive markets. The current export price is in the range of USD 100–103 per tonne FOB Indonesia, though this has been under pressure from rising international shipping costs .

Certification and traceability requirements constitute the most significant restraint. Stringent certification policies in importing countries add complexity and cost to the supply chain. Japan‘s FIT transition period ended in March 2024, and since April 2024, PKS-fired power generation without third-party certification is generally not eligible for FIT/FIP approval . The recognized certification schemes include RSPO, RSB, GGL, MSPO (Part 4), and ISCC Japan FIT . The ISCC Japan FIT system, recognized by METI since April 2022, requires lifecycle GHG reduction of 50% for fuels used through FY2029 and 70% for fuels used from FY2030 onward . Supply chain participants must maintain chain-of-custody certification from mill through vessel to power plant, a burden that favors larger, integrated suppliers over small traders.

Volatile supply chains create vulnerabilities. Dependence on Southeast Asian production exposes the market to disruptions from weather, logistics, and policy changes. Indonesia’s export levy and tax increases—combined taxes and levies on PKS shipments rose to USD 13 per tonne from USD 10, comprising a USD 5 per tonne export levy (increased from USD 3) and an USD 8 per tonne export tax linked to crude palm oil prices (increased from USD 7) —reduce the competitiveness of Indonesian PKS relative to Malaysian or other origins. The closure of the Tanjung Buton industrial port in Sumatra for repairs has forced suppliers in Riau province to move stockpiles to alternative export points, adding logistics cost .

Logistical challenges compound these constraints. Transporting PKS in bulk requires specialized infrastructure, and freight rates are volatile. In March 2026, dry bulk freight rates for Supramax or Ultramax vessels from east coast Sumatra to Europe rose to USD 60–75 per tonne from USD 45–55 previously, following geopolitical disruptions . Freight costs to Japan also increased, though less sharply, to USD 29–39 per tonne from USD 26–33 .

Technical Difficulties and Industry Observations
The certification compliance burden constitutes the central technical and commercial difficulty in the PKS market, and its implications extend beyond administrative cost to market structure.

The transition from a commodity byproduct trade to a certified sustainable fuel supply chain requires documentation and traceability that most small mills and traders cannot provide. An environmental NGO survey of Japanese FIT-certified biomass power generators found that while all respondents used certification systems to verify sustainability, only a minority disclosed the volume of certified fuel used and its specific identification number on their websites, and very few disclosed places of origin—information that is key to verifying sustainability . The survey also found that none of the companies calculated carbon emissions resulting from deforestation and forest degradation, a gap that European buyers under RED II would not accept . This divergence between Japanese and European compliance expectations means that PKS certified for Japan may not satisfy EU requirements, fragmenting the global market by regulatory regime.

A second observation concerns the geographic and regulatory divergence between Japan and Europe. Japan‘s ISCC Japan FIT system focuses on lifecycle GHG reduction thresholds and chain-of-custody, with a transition period that allowed older plants to phase in compliance. Europe‘s RED II imposes stricter land-origin criteria, deforestation attestation, and GHG calculation methodologies that require mill-level data . For Indonesian and Malaysian exporters, maintaining certification for both regimes requires separate documentation and audit processes, adding cost and complexity. The suppliers that can serve both markets—typically the larger, vertically integrated producers—enjoy a structural advantage over smaller exporters.

The direct-selling trend among major plantation groups warrants attention as an industry observation. Wilmar, Adani Agri, and Sinar Mas selling directly to Japanese buyers bypasses the independent trader tier that historically built the export market . This disintermediation has two consequences. First, it concentrates supply chain control among a smaller number of large producers, potentially reducing price competition. Second, it shifts the certification burden to the producers, who must maintain chain-of-custody documentation and audit readiness for their Japanese customers. The independent traders that remain must differentiate through service, aggregation of smaller mills, or specialization in certification-eligible supply—a narrower and more demanding role than the historical commodity brokerage model.

Supply-demand tightness in early 2026 reflected these structural pressures. The imported biomass markets for wood pellets and PKS were soft at the end of 2025 but supply-demand tightened in 2026, with Indonesian supply concerns from heavy rain in northern Sumatra and growing demand from outside Japan, including sales to Poland and anticipated demand from Singapore . Malaysian surplus cargoes that had been sold below USD 80 per tonne FOB were absorbed as Japanese buyers purchased Indonesian cargoes at low prices, demonstrating the market‘s sensitivity to origin-specific supply disruptions and the arbitrage between certification-eligible and non-eligible supply .

Strategic Outlook
The PKS market is positioned for solid growth through 2030, with the 10.1% CAGR reflecting both the expansion of biomass power capacity in Japan and South Korea and the emerging demand from Europe and Southeast Asian markets. The 12.42% concentration among the top three suppliers describes a market that remains accessible to new entrants and regional traders, but the certification requirements and the direct-selling trend among major producers are gradually raising the barriers to scale.

For PKS suppliers and traders, the strategic imperative is certification depth and origin diversification. The ability to provide ISCC Japan FIT and RED II-compliant documentation, with traceability to the mill level, is becoming as important as the fuel‘s calorific value. Suppliers that can serve both Japanese and European compliance regimes, and that have access to Malaysian or Thai supply as a hedge against Indonesian export policy changes, will capture the premium segments of the market.

For Japanese power utilities and European buyers, the practical consideration is supply assurance for certified PKS. The concentration of certification-eligible supply among a limited number of producers and traders, combined with Indonesia‘s export levy increases and the direct-selling trend, creates procurement risk that justifies long-term contracting and supplier relationship management. The alternative—spot purchasing during a supply squeeze—exposes buyers to the price volatility that the 2026 freight and levy increases demonstrated.

The longer-term trajectory depends on whether the certification burden consolidates the market around a smaller number of large, compliant suppliers, or whether the fragmentation persists as smaller producers invest in certification to access premium markets. The direct-selling trend suggests consolidation is underway, but the abundance of palm oil mills across Indonesia and Malaysia means that a long tail of smaller suppliers will continue to serve price-sensitive buyers in less regulated markets. The market‘s growth rate through 2030 will be determined less by resource availability than by the pace at which certification infrastructure expands to cover this long tail.

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