Posco Future M shares came under pressure after the company confirmed that its next-generation silicon anode materials are expected to reach mass production only in 2028, depending on market demand. The announcement cooled investor enthusiasm around what is otherwise seen as a major technological leap in EV battery materials.
While the development signals long-term innovation strength, the extended timeline created concern among market participants who were expecting faster commercialization of advanced battery components. The stock decline reflects a broader investor preference for near-term revenue visibility in the highly competitive electric vehicle supply chain.
The South Korean battery materials producer has been working on silicon-based anode technology designed to significantly enhance electric vehicle performance. According to company disclosures, the material has demonstrated more than 80% capacity retention after 1,000 charge and discharge cycles, even when silicon content exceeds 20%.
Silicon anodes are considered one of the most promising next-generation battery technologies because they can store over four times more energy than conventional graphite anodes. This translates into longer driving ranges and faster charging times for electric vehicles.
However, despite their potential, silicon anodes have historically been difficult to commercialize due to a major technical issue: expansion during charging cycles. This swelling can damage battery structure and reduce lifespan. Posco Future M claims it has addressed this challenge using silicon nanoprocessing and carbon composite technologies to control expansion and improve stability.
Even with technical progress, investors remain cautious due to the company’s decision to delay mass production until 2028. The timeline highlights the complexity of scaling silicon anode technology from laboratory success to industrial output.
Posco Future M said Wednesday it has secured technology for the mass production of silicon anode materials, a next-generation lithium-ion battery component, and plans to begin commercial production in 2028.https://t.co/xRD4iwNz5n
— The Korea Herald 코리아헤럴드 (@TheKoreaHerald) May 20, 2026
The company emphasized that commercialization will depend on demand conditions, suggesting a flexible rather than fixed rollout strategy. This uncertainty has contributed to short-term pressure on the stock, as markets often prioritize near-term earnings drivers over long-term research milestones.
At the same time, Posco Future M is not abandoning its current revenue base. Instead, it continues to scale its traditional graphite-based anode business, which remains essential for today’s EV batteries.
Beyond silicon innovation, Posco Future M is aggressively strengthening its position in the global EV supply chain. The company is investing heavily in an artificial graphite anode plant in Vietnam, with an estimated cost of 357 billion won (about US$236 million). The facility is expected to begin commercial output by 2028, with an annual capacity of up to 55,000 metric tons and potential for future expansion.
The company has also secured major long-term supply agreements, including a contract worth approximately 1 trillion won (about US$660 million) to supply anode materials to a global automaker between 2027 and 2032. These agreements provide a stable revenue base that supports its longer-term research and development efforts.
This dual strategy, scaling existing materials while preparing next-generation silicon products, positions the company to serve both current EV demand and future battery advancements.
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