Samsung SDI

South Korea's EV Battery Giant and Major DRC Cobalt Consumer

Official website: www.samsungsdi.com

Overview

Samsung SDI is a major manufacturer of lithium-ion batteries for electric vehicles and energy storage systems, with cobalt exposure through nickel-manganese-cobalt battery chemistries. A subsidiary of the Samsung Group conglomerate, the company has evolved from its origins in consumer electronics into a major participant in the global EV battery supply chain, competing with Chinese manufacturers such as CATL and BYD, as well as its South Korean rival LG Energy Solution. Any DRC-origin cobalt linkage should be verified through supplier, refiner, and company disclosures.

Samsung SDI reported KRW 13.3 trillion in annual revenue for 2025 and occupies the middle segment of the battery supply chain where African-sourced critical minerals may be transformed into energy storage products. The company's EV battery portfolio includes nickel-manganese-cobalt (NMC) cathodes, creating cobalt exposure, but Samsung SDI does not publicly disclose mine-level cobalt volumes or a direct Lobito Corridor procurement channel.

Samsung SDI's strategic importance extends beyond pure market share. Its partnerships with European and American automakers, particularly BMW and Stellantis, place the company at the centre of Western efforts to build EV supply chains that are less dependent on Chinese processing and manufacturing. The company's manufacturing expansion into Hungary and the United States, including its StarPlus Energy joint venture with Stellantis in Kokomo, Indiana, reflects the broader geopolitical competition over battery supply chain localisation that is reshaping how DRC minerals flow through global value chains.

DRC Cobalt Supply Chain Dependencies

Samsung SDI's connection to the Lobito Corridor is primarily indirect, through cobalt used in NMC battery cathodes. The DRC produces the dominant share of global mined cobalt, but Samsung SDI's mine-level sourcing and annual cobalt consumption are not disclosed in the official materials reviewed for this profile.

A possible pathway from DRC mine to Samsung SDI battery cell involves multiple intermediaries and processing stages. Cobalt mined in the DRC, often as a by-product of copper mining, can be processed into cobalt hydroxide or cobalt metal, refined into battery-grade chemicals, converted into cathode precursor and cathode active materials, and then incorporated into cells. This describes an industry pathway; it should not be read as a verified Samsung SDI mine-to-cell chain without supplier or refiner evidence.

Cathode Chemistry and Cobalt Intensity

Samsung SDI's EV battery products include NMC (nickel-manganese-cobalt) cathode chemistries, and the broader industry has moved toward higher-nickel, lower-cobalt formulations. That shift reduces cobalt intensity per kilowatt-hour, but Samsung SDI does not disclose mine-level annual cobalt consumption in the materials reviewed for this profile.

The company has also developed nickel-rich NMC 9-series cathodes for premium applications, further reducing cobalt ratios. Even at reduced percentages, NMC production creates cobalt exposure, but tonnage estimates should be treated as third-party modelling unless Samsung SDI discloses them directly.

Supply Chain Mapping and Traceability

The multi-layered nature of cobalt supply chains presents significant traceability challenges. Between a DRC mine and a battery-cell manufacturing plant, cobalt may pass through a mining company, a chemical processor, a cathode precursor or cathode active material producer, and a cell maker. At each stage, material from multiple sources may be blended, making mine-of-origin traceability difficult without dedicated chain-of-custody systems.

Samsung SDI publishes annual conflict minerals reports as required by US Securities and Exchange Commission regulations and the EU Conflict Minerals Regulation. These reports disclose the company's due diligence processes and identify smelters and refiners in the supply chain. However, the reports typically identify downstream processors rather than tracing material back to specific mines, leaving a gap between Samsung SDI's stated commitments to responsible sourcing and the practical reality of verifying those commitments at the mine level in the DRC.

DRC cobalt policy changes can affect downstream consumers, but Samsung SDI-specific impacts should be verified through company disclosures, supplier filings, and regulator material before being stated as fact.

Manufacturing Operations and Global Expansion

South Korea: Home Base Operations

Samsung SDI's primary manufacturing operations are concentrated in South Korea, with major production facilities in Cheonan (South Chungcheong Province) and Ulsan. The Cheonan complex serves as the company's primary prismatic cell manufacturing hub, producing batteries for BMW, Rivian, and other European and American automakers. The Ulsan facility focuses on cylindrical cell formats and energy storage system products. These domestic facilities benefit from established supply chains, proximity to Samsung Group's broader component ecosystem, and South Korea's robust workforce of battery engineers and technicians.

Samsung SDI has invested heavily in expanding its South Korean production capacity, adding new production lines and modernising existing facilities to accommodate higher-energy-density cell formats. The company's domestic operations produce the majority of its current output, though the share of overseas production is projected to grow significantly as new international plants come online through 2027 and beyond.

Hungary: European Manufacturing Hub

Samsung SDI's European manufacturing operations are based in Göd, Hungary, approximately 30 kilometres north of Budapest. The Göd plant began production in 2018 and has undergone multiple expansions, with total investment exceeding $3.5 billion. The facility primarily produces prismatic battery cells for BMW, which operates major vehicle assembly plants in Germany and is Samsung SDI's most important European customer.

The Hungarian operation is strategically important for Samsung SDI's compliance with European Union regulations, including the EU Battery Regulation that entered into force in 2023 and imposes increasingly stringent requirements on battery carbon footprints, recycled content, and supply chain due diligence. By manufacturing within the EU, Samsung SDI can better meet local content and regulatory requirements while reducing logistics costs for its European automotive customers.

However, the Göd facility has faced local opposition. Residents of the town have raised concerns about environmental impacts, including air quality, water usage, and industrial waste management. These community tensions mirror broader debates across Europe about the environmental and social trade-offs of onshoring battery manufacturing. The Hungarian government has generally supported the Samsung SDI investment as part of its strategy to position Hungary as a European EV battery manufacturing hub, also hosting facilities from CATL and SK Innovation.

StarPlus Energy: The US Joint Venture

Samsung SDI's most consequential strategic move in recent years has been its joint venture with Stellantis to establish StarPlus Energy, a battery manufacturing operation in Kokomo, Indiana. Announced in 2022 and with construction well advanced by early 2026, the Kokomo facility represents Samsung SDI's entry into US-based battery manufacturing and its most significant response to the geopolitical forces reshaping global battery supply chains.

The StarPlus Energy joint venture is structured as a 51-49 partnership, with Samsung SDI holding the majority stake and providing the battery technology and manufacturing expertise, while Stellantis contributes as the anchor customer and co-investor. The facility's initial planned capacity is 33 GWh, with a second phase expected to bring total capacity to approximately 67 GWh. Total investment in the Kokomo complex is projected to exceed $6.3 billion across both phases.

The Kokomo facility is designed to produce prismatic NMC battery cells primarily for Stellantis vehicles assembled in North America, including models sold under the Jeep, Ram, Chrysler, and Dodge brands. The plant's production is intended to qualify for Inflation Reduction Act (IRA) tax credits under Section 30D, which provides up to $7,500 per vehicle in consumer tax credits for EVs that meet domestic content requirements for battery components and critical minerals.

IRA Compliance and FEOC Challenges

Samsung SDI's ability to fully benefit from IRA incentives depends on meeting two critical requirements: the battery component manufacturing requirement (progressively increasing domestic content thresholds for components assembled in North America) and the critical minerals requirement (progressively increasing percentages of critical minerals extracted or processed in the US or countries with US free trade agreements, or recycled in North America).

The critical minerals requirement presents a significant challenge for battery manufacturers with exposure to Chinese-affiliated refining or processing. From 2025 onward, EV batteries containing critical minerals extracted, processed, or recycled by Foreign Entities of Concern (FEOC) are ineligible for the critical-minerals portion of the tax credit. Samsung SDI-specific FEOC exposure should be verified through supplier and customer disclosures.

Samsung SDI has acknowledged supply-chain localisation and compliance challenges and is working to diversify critical-minerals sourcing and processing pathways. Public claims about non-Chinese refiner agreements, DRC procurement relationships, or StarPlus Energy credit eligibility should be tied to current Samsung SDI, Stellantis, Treasury, or supplier disclosures.

The FEOC challenge also has implications for downstream battery manufacturers' potential interest in the Lobito Corridor. As the US government promotes the corridor as a pathway for African critical minerals to reach Western markets without FEOC intermediation, Samsung SDI could benefit indirectly if supplier-specific logistics and processing routes are developed and disclosed. No direct Samsung SDI-Lobito procurement channel has been identified in official materials reviewed for this page.

Competitive Position and Market Dynamics

Third-party market-share providers generally place Samsung SDI among the leading global EV battery suppliers, behind CATL, BYD, and LG Energy Solution in many recent rankings. Exact rank and share vary by provider, chemistry, geography, and reporting period, so this page avoids treating market share as a company-disclosed fact.

The company's competitive advantages include its deep relationship with BMW, which has been Samsung SDI's most important customer for over a decade, its prismatic cell expertise that is preferred by several European automakers, and its membership in the Samsung Group ecosystem, which provides access to capital, semiconductor technology, and advanced materials capabilities. Samsung SDI's R&D investment exceeds $1 billion annually, focused on next-generation cell chemistries, solid-state battery development, and manufacturing process innovation.

Customer Diversification

Samsung SDI has worked to diversify its customer base beyond BMW. Significant supply agreements with Stellantis (through StarPlus Energy), Rivian, Hyundai/Kia, and Volvo have broadened the company's revenue sources and reduced single-customer concentration risk. The Rivian partnership is particularly notable, as Samsung SDI supplies cylindrical cells for Rivian's R1T pickup truck and R1S SUV, positioning the company in the US premium EV segment alongside Tesla's relationship with Panasonic and LG.

The Hyundai/Kia relationship connects Samsung SDI to one of the world's largest automotive groups and provides a domestic anchor customer in South Korea. Volvo's commitment to full electrification by the end of the decade provides Samsung SDI with another European growth vector alongside its BMW business.

Solid-State Battery Development

Samsung SDI has positioned solid-state battery technology as its primary pathway to next-generation competitive differentiation. The company has announced plans to begin pilot production of solid-state cells by 2027, with commercial-scale production targeted for 2029 to 2030. Solid-state batteries promise higher energy density, faster charging, improved safety, and potentially longer cycle life compared to conventional liquid electrolyte lithium-ion cells.

The cobalt implications of solid-state batteries are uncertain but potentially significant. Early solid-state designs from Samsung SDI and competitors suggest that NMC-type cathode chemistries will continue to be used, meaning cobalt demand could persist even as cell architectures evolve. However, the higher energy density of solid-state cells could reduce the total number of cells required per vehicle, potentially offsetting increases in absolute production volume. The net effect on Samsung SDI's cobalt demand will depend on the pace of solid-state adoption, the cathode chemistry choices made for commercial products, and the overall growth trajectory of the EV market.

Supply Chain Due Diligence and Conflict Minerals

Samsung SDI's approach to supply chain due diligence reflects the tension between the company's stated commitments to responsible sourcing and the structural challenges of achieving full traceability in a complex, multi-tiered global supply chain that originates in some of the world's most challenging governance environments.

Responsible Minerals Initiative Membership

Samsung SDI is a member of the Responsible Minerals Initiative (RMI), the industry's leading collaborative framework for responsible mineral sourcing. RMI membership commits Samsung SDI to implementing the OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas, conducting risk assessments of its mineral supply chains, and participating in industry-wide initiatives to improve traceability and governance in mineral-producing regions.

Through the RMI, Samsung SDI participates in the Responsible Minerals Assurance Process (RMAP), which audits smelters and refiners against responsible sourcing standards. The company requires its direct suppliers to source from RMAP-conformant smelters and reports on the proportion of its supply chain that has been validated through these mechanisms. As of its most recent conflict minerals report, Samsung SDI identified over 200 smelters and refiners in its supply chain across tin, tantalum, tungsten, gold, and cobalt (3TG+Co).

Conflict Minerals Reporting

Samsung SDI publishes annual conflict minerals reports in compliance with Section 1502 of the US Dodd-Frank Act and, more recently, the EU Conflict Minerals Regulation. These reports describe the company's due diligence framework, supply chain mapping efforts, and risk identification and mitigation processes. The reports follow the five-step framework of the OECD Due Diligence Guidance: establishing strong company management systems, identifying and assessing risks, designing and implementing a strategy to respond to identified risks, carrying out independent third-party audits, and reporting on supply chain due diligence.

However, the practical limitations of Samsung SDI's conflict minerals reporting are significant. The reports identify smelters and refiners but do not typically trace material to specific mines. The multi-layered nature of the cobalt supply chain, with material from artisanal and industrial sources often co-mingled at processing facilities, makes mine-level traceability extremely difficult. Samsung SDI acknowledges these limitations in its reporting and describes ongoing efforts to improve supply chain visibility, including digital traceability pilots and direct engagement with upstream suppliers.

Cobalt-Specific Due Diligence

Samsung SDI has implemented cobalt-specific due diligence measures that go beyond the standard 3TG conflict minerals framework. The company has established a Cobalt Due Diligence Policy that commits to respecting human rights throughout its cobalt supply chain, with particular attention to child labour, forced labour, and unsafe working conditions. The policy explicitly references the artisanal and small-scale mining (ASM) sector in the DRC, where these risks are most acute.

The company participates in industry initiatives focused on cobalt supply chain responsibility, including the Cobalt Industry Responsible Assessment Framework (CIRAF) and various automotive industry working groups on responsible battery materials sourcing. Samsung SDI has also engaged with organisations working on ASM formalisation in the DRC, though the scale and effectiveness of these engagements relative to the company's cobalt consumption remains difficult to independently verify.

A persistent challenge in Samsung SDI's cobalt due diligence is the opacity of midstream processing. Chinese refiners process a large share of DRC cobalt into battery-grade materials, but Samsung SDI-specific supplier exposure should be tied to the company's conflict-minerals and responsible-minerals disclosures rather than inferred from sector structure alone.

ESG Assessment

Environmental Performance

Samsung SDI's environmental footprint is defined primarily by the energy intensity of battery manufacturing and the embodied emissions of its raw material supply chain. The company has set targets to achieve carbon neutrality in its direct operations (Scope 1 and 2) by 2050, with interim targets for renewable energy procurement and energy efficiency improvements at its manufacturing facilities. The South Korean and Hungarian plants are progressively increasing their use of renewable electricity, though the pace of this transition varies by jurisdiction.

The Scope 3 emissions associated with Samsung SDI's raw material supply chain, including the mining, refining, and processing of cobalt, nickel, lithium, and other battery materials, represent the majority of the product's lifecycle carbon footprint. These upstream emissions are significantly influenced by the energy mix of processing countries, with Chinese cobalt refining relying heavily on coal-generated electricity. Samsung SDI's efforts to shift supply chains away from Chinese processing could have positive environmental co-benefits if alternative refining operations use lower-carbon energy sources.

Social Responsibility

Samsung SDI's social responsibility performance must be evaluated across multiple geographies and tiers of its supply chain. At its own manufacturing facilities, the company reports compliance with international labour standards, including freedom of association, non-discrimination, and occupational health and safety. Samsung SDI is subject to regular audits under Samsung Group's supplier code of conduct and external frameworks such as the Responsible Business Alliance (RBA) standards.

The more consequential social responsibility questions relate to Samsung SDI's upstream supply chain, particularly in the DRC. The company's cobalt supply chain traverses regions where child labour in artisanal mining, hazardous working conditions, community displacement, and inadequate environmental protections are well-documented by international organisations including UNICEF, Amnesty International, and the International Labour Organisation. Samsung SDI's ability to ensure that its cobalt does not contribute to these harms depends on the effectiveness of its due diligence programmes and the integrity of auditing processes at each tier of the supply chain.

Governance

As a Samsung Group subsidiary listed on the Korea Exchange, Samsung SDI operates within the governance framework of one of South Korea's largest chaebol conglomerates. Samsung Group's governance practices have faced scrutiny over the years, including high-profile legal proceedings involving former Samsung Group chairman Lee Jae-yong. Samsung SDI's board includes independent directors and has established committees for audit, compensation, and sustainability oversight, though the degree of genuine board independence within the chaebol structure remains a question for governance analysts.

Samsung SDI's sustainability governance includes a dedicated ESG management organisation, regular materiality assessments, and integration of ESG considerations into business strategy and investment decisions. The company participates in major ESG rating frameworks and has received generally favourable ratings from agencies such as MSCI and Sustainalytics relative to industry peers, though these ratings primarily evaluate policy and process rather than outcomes at the mine level.

Strategic Outlook and Corridor Implications

Samsung SDI's strategic trajectory has indirect implications for the Lobito Corridor and the broader geopolitics of critical mineral supply chains. Several key dynamics may shape the company's exposure to DRC cobalt supply chains over the coming years.

Supply Chain Restructuring Under IRA and FEOC

A major strategic priority for Samsung SDI is adapting its critical-minerals supply chain to US IRA requirements and FEOC restrictions. This could create opportunities for the Lobito Corridor if Samsung SDI suppliers seek non-FEOC processing pathways for DRC cobalt. Investments in cobalt refining capacity outside China could create new supply routes, but Samsung-specific links should be verified before publication.

The US government's promotion of the Lobito Corridor as a critical-minerals trade route aligns with the battery industry's broader need for verifiable, non-FEOC supply chains. If corridor infrastructure development creates efficient logistics pathways from DRC mines to allied processing facilities, Samsung SDI or its suppliers could become customers, but that remains a scenario rather than a disclosed relationship.

Cobalt Demand Trajectory

Samsung SDI's future cobalt demand will be shaped by competing forces. The transition to lower-cobalt cathode chemistries reduces cobalt intensity per kilowatt-hour, while growth in EV battery production can still increase absolute demand. The company's development of cobalt-free or lower-cobalt chemistries could provide longer-term pathways to reduce DRC cobalt exposure, but timing and material impact should be checked against current product and capacity disclosures.

Geopolitical Positioning

Samsung SDI's position as a South Korean company manufacturing in allied nations (South Korea, Hungary, United States) places it firmly within the Western-aligned battery supply chain ecosystem that governments in Washington, Brussels, and Seoul are working to establish. This geopolitical positioning creates both opportunities and obligations. Samsung SDI benefits from subsidies, trade preferences, and diplomatic support, but faces increasing expectations around supply chain transparency, responsible sourcing verification, and the demonstration that Western-aligned supply chains deliver genuine improvements in governance and human rights outcomes relative to the Chinese-dominated alternatives.

The company's credibility in this geopolitical role depends on demonstrating that its supply chain due diligence is more than a compliance exercise. As governments invest billions in corridor infrastructure and critical minerals partnerships, Samsung SDI and its battery manufacturing peers face growing scrutiny from civil society organisations, investigative journalists, and regulatory bodies demanding evidence that the minerals in Western-bound EV batteries are sourced responsibly from the communities and ecosystems that bear the costs of extraction.