Samsung SDI stock (KR7006400006): $3.5B GM battery project paused amid EV slowdown

Samsung SDI's joint venture battery plant in Indiana with General Motors has been put on hold as the electric vehicle market faces headwinds, marking a significant setback for the South Korean battery maker's US expansion.

Samsung SDI's $3.5 billion joint battery production facility with General Motors in New Carlisle, Indiana, has been paused, according to Korea JoongAng Daily as of May 14, 2026. The halt reflects broader challenges in the global electric vehicle market, where sales growth has slowed in key regions despite long-term industry projections for expansion.

As of: May 14, 2026

By the editorial team – specialized in equity coverage.

At a glance

• Name: Samsung SDI Co., Ltd.
• Sector/industry: Battery manufacturing, energy storage, electric vehicle components
• Headquarters/country: South Korea
• Core markets: Electric vehicle batteries, energy storage systems, consumer electronics
• Key revenue drivers: EV battery supply, cylindrical battery production, solid-state battery development
• Home exchange/listing venue: Korea Exchange (KRX: 006400)
• Trading currency: South Korean Won (KRW)
• US exposure: Joint venture with General Motors; supplies to US-based EV manufacturers

Samsung SDI: core business model

Samsung SDI is a leading global battery manufacturer specializing in lithium-ion and advanced battery technologies for electric vehicles, energy storage systems, and consumer electronics. The company operates as a subsidiary of the Samsung Group and competes with major players including Contemporary Amperex Technology Co. (CATL) and LG Chem in the rapidly evolving battery supply chain. Samsung SDI's strategic focus includes cylindrical battery production, solid-state battery development, and partnerships with major automotive manufacturers to secure long-term supply contracts.

Main revenue and product drivers for Samsung SDI

The company's primary revenue stream comes from electric vehicle battery supply contracts with global automakers. In April 2025, Samsung SDI began mass production of 46-series cylindrical batteries featuring advanced safety technologies and high-performance specifications, according to Spherical Insights as of April 2025. Beyond traditional lithium-ion batteries, Samsung SDI is investing in next-generation solid-state battery technology, positioning itself for the 2027–2028 commercialization window when major automakers plan to introduce all-solid-state battery vehicles.

The GM joint venture pause and market implications

The pause of the New Carlisle battery plant represents a significant challenge for Samsung SDI's North American expansion strategy. The facility was designed to supply batteries for General Motors' electric vehicle lineup, a critical partnership for both companies. The slowdown in global EV sales, particularly in certain regional markets, has prompted major automakers and suppliers to reassess capital expenditure timelines. This decision underscores the cyclical nature of the battery supply industry and the sensitivity of large-scale manufacturing investments to near-term demand fluctuations.

Conclusion

Samsung SDI faces near-term headwinds from the paused General Motors joint venture, reflecting broader EV market softness. However, the company's diversified battery portfolio, including advanced cylindrical and solid-state technologies, positions it for potential recovery as the industry transitions to next-generation battery chemistries. US investors tracking Samsung SDI should monitor developments in the GM partnership, quarterly earnings reports, and progress on solid-state battery commercialization timelines.

Disclaimer: This article does not constitute investment advice. Stocks are volatile financial instruments.