LG Energy Solution is now KOSPI's No. 5 company; its Ohio storage ramp rests on small toolmakers

The tool orders moved five days before the stock did

On October 14, 2026, LG Energy Solution▲+7.20% — LG Energy Solution, up 7.20 percent today, South Korea's largest lithium-ion cell maker, rerouted the machinery orders behind its Ohio storage line, moving module assembly work to System R&D, a privately held automation specialist that had previously built pouch-cell packaging tools for LG ¹.

The reroute was forced. Daejin Machinery, its long-time supplier of module and pack assembly tooling, defaulted in December 2025 and entered court-supervised rehabilitation in March, after subcontractor Central Conveyor sued over $22.43 million of unpaid installation work↗ on five production lines at the Jeffersonville plant LG built with Honda ¹. LG has published no supplier reallocation notice, and its filings do not disclose the value moved between vendors ¹.

The rotation made it the KOSPI's fifth-largest company

Five days later, the market paid for the plan. On the KOSPI, Korea's main stock market, LG Energy Solution traded at 417,000 won as of 10:05 a.m. on October 19↗, up 3.47%, lifting its market value to 97.46 trillion won past Samsung Electro-Mechanics, the electronics component maker down 6.73%, into fifth place ².

The money came out of chips. Samsung Electronics▲+1.16% — Samsung Electronics, up 1.16 percent today and SK hynix▲+4.76% — SK hynix, up 4.76 percent today, Korea's two largest chipmakers, have nearly halved since June as doubts spread over the profitability of AI cloud operators such as CoreWeave▼−2.05% — CoreWeave, down 2.05 percent today, while expectations of tighter US trade curbs on China favor Korean battery makers ².

One replacement order is half a toolmaker's revenue

The bid rests on a real pivot. The LG-Honda plant, built for EV cells, began mass production of storage cells on July 1, 2026↗, instead, after Washington let EV purchase incentives lapse and Honda canceled its North American EV program with 2.5 trillion yen ($15.7 billion) of write-offs ³⁴. LG has since agreed to sell its stake in the plant to Honda for $2.85 billion ³.

On September 21 LG's storage system qualified for NVIDIA's DSX Ready program↗, the reference design for AI-factory power ⁵. By year-end LG expects more than 50 gigawatt-hours of North American cell capacity ⁶.

The machinery is the weak link. LG makes cells in-house but buys the assembly tooling, which Daejin supplied ¹. The replacement order at HyVISION System, a KOSDAQ-listed equipment maker, rose almost fivefold from May to 95 billion won ($70 million), 55.52% of HyVISION's entire 2025 revenue ¹.

That tooling feeds a module plant run by Sebang Lithium Battery, a Korean pack maker assembling LG's JF2 Link grid-storage units for utilities and AI data centers under a 1.8 trillion won ($1.3 billion) deal, backed by 150 billion won of Sebang capex ¹. Ohio approved tax credits for 443 Sebang jobs on September 28↗ ⁷; Sebang and HyVISION swapped 4.5 billion won of shares in 2025 ⁸.

What the fourth quarter decides

New tooling must pass qualification trials before it holds yield, and Daejin's debt-restructuring plan is still before the Cheongju District Court ¹. The demand case is documented: five regional plants, roughly 80% of LG's global storage capacity in North America by year-end↗, and an AI-factory qualification from NVIDIA▲+1.49% — NVIDIA, up 1.49 percent today ⁵⁶. First shipments from Sebang's Ohio lines, due this quarter, will show whether second-source vendors can carry the ramp the KOSPI just paid for ¹.