---
title: "LG Energy Solution is now KOSPI's No. 5 company; its Ohio storage ramp rests on small toolmakers"
description: "A chip selloff pushed money into Korean battery makers on October 19, making LG Energy Solution the KOSPI's fifth-largest company at 97.46 trillion won. The grid-storage ramp those buyers just priced now rests on small second-source toolmakers rebuilding an Ohio assembly line."
publisher: "The Inference"
section: "Markets"
published: 2026-10-19T17:16:22.773Z
modified: 2026-10-19T17:16:22.773Z
canonical: https://theinference.org/article/lg-energy-solution-is-now-kospi-s-no-5-company-its-ohio-storage-ramp-rests-on-small-toolmakers
language: en
keywords: "Batteries, Energy Storage, Markets, Supply Chain, Korea, AI Data Centers"
---

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

> A chip selloff pushed money into Korean battery makers on October 19, making LG Energy Solution the KOSPI's fifth-largest company at 97.46 trillion won. The grid-storage ramp those buyers just priced now rests on small second-source toolmakers rebuilding an Ohio assembly line.

## The tool orders moved five days before the stock did

On October 14, 2026, [LG Energy Solution](https://theinference.org/markets/companies/lg-energy-solution), 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](https://eastasiabrief.com/batteries-ev/lg-energy-solution-reallocates-equipment-vendor-defaults-ohio-729) 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](https://en.sedaily.com/signal/article/kospi-selloff-reshuffles-rankings-as-lg-energy-solution), 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](https://theinference.org/markets/companies/samsung) and [SK hynix](https://theinference.org/markets/companies/sk-hynix), Korea's two largest chipmakers, have nearly halved since June as doubts spread over the profitability of AI cloud operators such as [CoreWeave](https://theinference.org/markets/companies/coreweave), while expectations of tighter US trade curbs on China favor Korean battery makers [2].

*Chart: **On October 19, battery names rose on the KOSPI while chip-linked Samsung Electro-Mechanics fell** Same-day share price moves on the KOSPI, October 19, 2026: LG Energy Solution, Samsung SDI and SK Innovation up; Samsung Electro-Mechanics down*

*Intraday share price changes as of 10:05 a.m. KST on October 19, 2026, in percent, per Korea Exchange data. [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](https://finance.yahoo.com/energy/articles/honda-battery-plant-says-launched-035900916.html), 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 [3][4]. 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](https://finance.yahoo.com/energy/articles/lg-energy-solutions-battery-energy-180000357.html), 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](https://www.springfieldnewssun.com/local/lithium-battery-plant-walmart-warehouse-to-have-750-new-jobs/article_23da9603-25c6-5423-a692-09819710b544.html) [7]; Sebang and HyVISION swapped 4.5 billion won of shares in 2025 [8].

*Chart: **One Ohio storage chain: a $22 million unpaid bill sits under a $1.3 billion assembly deal** Dollar values across the Ohio storage chain: disputed Daejin installation work, HyVISION's expanded tool order, Sebang's plant capex and Sebang's module deal with LG*

*Reported US dollar values across one Ohio storage chain, in millions. [1]*

## 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](https://www.msn.com/en-us/news/technology/lg-energy-fires-up-2b-michigan-battery-plant-targets-50-gwh-capacity-by-year-end/ar-AA2auZ1K), and an AI-factory qualification from [NVIDIA](https://theinference.org/markets/companies/nvidia) [5][6]. 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].

## Takeaway

The KOSPI re-rating of LG Energy Solution prices a fourth-quarter Ohio storage ramp that depends on second-source toolmakers still proving their yields, with first Sebang shipments due this quarter.

## Sources

1. [East Asia Brief, "LG Energy Solution Reallocates Equipment as Vendor Defaults in Ohio," October 2026](https://eastasiabrief.com/batteries-ev/lg-energy-solution-reallocates-equipment-vendor-defaults-ohio-729)
2. [Seoul Economic Daily (Sedaily), "KOSPI Selloff Reshuffles Rankings as LG Energy Solution Passes Samsung Electro-Mechanics," 19 October 2026](https://en.sedaily.com/signal/article/kospi-selloff-reshuffles-rankings-as-lg-energy-solution)
3. [Journal-News via Yahoo Finance, "Honda battery plant says it has launched full-time production," 2 July 2026](https://finance.yahoo.com/energy/articles/honda-battery-plant-says-launched-035900916.html)
4. [Just Auto via MSN, "L-H Battery begins ESS battery production at its Ohio plant," July 2026](https://www.msn.com/en-us/autos/news/l-h-battery-begins-ess-battery-production-at-its-ohio-plant/ar-AA27kL34)
5. [PR Newswire via Yahoo Finance, "LG Energy Solution's Battery Energy Storage System Qualifies as NVIDIA DSX Ready BESS," 21 September 2026](https://finance.yahoo.com/energy/articles/lg-energy-solutions-battery-energy-180000357.html)
6. [Interesting Engineering via MSN, "LG Energy fires up $2B Michigan battery plant, targets 50+ GWh capacity by year-end," August 2026](https://www.msn.com/en-us/news/technology/lg-energy-fires-up-2b-michigan-battery-plant-targets-50-gwh-capacity-by-year-end/ar-AA2auZ1K)
7. [Springfield News-Sun, "750 new regional jobs to open at battery plant, Walmart warehouse," 30 September 2026](https://www.springfieldnewssun.com/local/lithium-battery-plant-walmart-warehouse-to-have-750-new-jobs/article_23da9603-25c6-5423-a692-09819710b544.html)
8. [Chosun Biz, "SEBANG and HyVISION SYSTEM exchange 4.5 billion won in shares for strategic cooperation," 21 July 2025](https://biz.chosun.com/en/en-finance/2025/07/21/LSBZSMYQNFGYVE5IAPTOFVAHN4/)


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LG Energy Solution is now KOSPI's No. 5 company; its Ohio storage ramp rests on small toolmakers — The Inference. Canonical: https://theinference.org/article/lg-energy-solution-is-now-kospi-s-no-5-company-its-ohio-storage-ramp-rests-on-small-toolmakers