🔥 Samsung SDI, North American Plant Restructuring and All-Solid-State Push - 2026.09.08

Now, now~ From the onion’s perspective, Samsung SDI’s key question is how to revive its North American plants amid slowing EV demand. The company is moving to convert the joint venture plant it had been developing with GM into an independent production base, while the plan to produce ESS first instead of EV batteries has also come into view. This is not merely a matter of changing the factory sign; it is a restructuring effort to bring in different demand where demand has weakened. 🔥

North American Plant, From Joint Venture to Independent Operations

Samsung SDI has begun reorganizing to convert the battery plant in New Carlisle, Indiana, which it had been developing with GM, to an independently operated system. As construction was temporarily halted due to slowing U.S. EV demand, the explanation was that the company was changing the operating structure ^[2]. Another report said Samsung SDI is pursuing a plan to take sole ownership of the joint venture plant being built with GM and to begin ESS production before EV-related production ^[1].

What matters here is the change in the production base’s purpose. Rather than waiting only for EV demand, the company appears to be seeking to raise equipment utilization by attaching ESS demand first. However, this is still a stage of reorganizing the operating structure and pursuing the conversion. The actual production start date and whether it will translate into profitability are separate issues. A factory ultimately has to be fed to keep running, and a battery plant has to consume electricity and generate results. This is a fairly real-world challenge.

The Gap Between the Stock Price and Expectations

According to the reference price table, Samsung SDI closed on September 8 at ₩530,000, with a daily change of -2.03%. This was another decline from the September 7 close of ₩541,000. Although the major story of North American production restructuring has emerged, the market still appears to be focusing more on actual operations and earnings impact than on the plan itself.

The onion views the North American production restructuring as the first button in the bullish scenario. But buttoning one button does not complete the coat. The next scene will be whether the shift to ESS production leads to actual shipments and profitability, and how the costs and time required for independent operations are determined.

ESS Order Competition, Still a Competitive Landscape

Reports have also emerged that LG Energy Solution and Samsung SDI are competing for orders related to Tesla’s Megapack ^[4]. What has been confirmed here is only that competition is taking place. It is not yet time to expand that interpretation into a confirmed Samsung SDI order or a signed supply contract.

Still, it is worth clearly noting that the market’s attention has broadened from EVs to ESS. If the Indiana plant’s production shift is connected with the Megapack order competition, production and sales—the two pillars of the North American ESS business—can be assessed at the same time. Conversely, if no result emerges from the order battle with competitors, the connection between the plant conversion and earnings will have to be validated again. Ah, from here on, contracts tend to make more noise than words.

All-Solid-State Batteries Are a Long-Term Expectation; The Schedule Needs Verification

Amid the all-solid-state battery race among Chinese, Korean, and Japanese battery makers, Samsung SDI is targeting completion of preparations for mass production in the second half of 2027, the earliest among the three companies. Reports also said it is developing all-solid-state batteries using an anode-free technology and considering the humanoid robot market as a commercialization platform ^[3].

All-solid-state batteries are less a card for immediately resolving the North American plant’s operating issues than a variable showing Samsung SDI’s position in the next-generation technology race. That is why the current ESS shift and future all-solid-state preparations should not be placed in the same basket. One concerns production and demand response, while the other concerns technology development and the stage for commercialization.

Ultimately, three questions remain. How quickly will the conversion to independent operations at the Indiana plant lead to actual production, will verifiable contracts emerge from the ESS order competition, and will the target of completing preparations for all-solid-state mass production in the second half of 2027 proceed according to the development schedule? What did I say~ The market runs ahead on expectations, but earnings always follow a beat later. 🚀

📰 Reference News (4)

1

Samsung SDI Takes on GM’s Stake Too… U.S. Plant to Start with ESS Production

네이버뉴스 · 2026.09.07

📰 View original

2

Samsung SDI to Reshape U.S. Indiana Plant… “A Normal Reorganization Process for Converting to Independent Operations” - M Today

네이버뉴스 · 2026.09.08

📰 View original

3

China, Korea, and Japan Battle Over All-Solid-State Batteries… K-Battery Companies Mobilize to Capture the Market

네이버뉴스 · 2026.09.08

📰 View original