# Korean cathode makers retool production lines for LMFP chemistry as price war spreads

*LG Chem, EcoPro BM, and POSCO Future M accelerate manganese-doped phosphate materials to defend mid-tier electric vehicle supply contracts.*

**Published:** August 28, 2026  
**By:** Seung-min Park  
**Section:** Batteries & Electric Vehicles — South Korea  
**Format:** Company Watch  

**Source:** https://eastasiabrief.com/batteries-ev/korean-cathode-makers-retool-production-lines-lmfp-chemistry-price-16  
**Publisher:** East Asia Brief (https://eastasiabrief.com/)

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## What to know

- Lithium manganese iron phosphate introduces manganese into the crystal olivine lattice of traditional iron phosphate at typical molar ratios ranging between 60 to 40 and 80 to 20 manganese to iron.
- LG Chem has accelerated the qualification schedule for its proprietary manganese-rich phosphate active materials across facilities in Cheongju and Gumi, South Korea.

![A researcher in a laboratory adjusts chemical processing equipment used to develop advanced battery materials. (AI-generated image)](https://eastasiabrief.com/media/2026-08-28-3ea0c30b6fa0.png)
*A researcher in a laboratory adjusts chemical processing equipment used to develop advanced battery materials. (AI-generated image)*

South Korea’s leading cathode manufacturers are reallocating capital expenditures and modifying production lines to produce lithium manganese iron phosphate chemistry, marking a coordinated structural pivot away from an exclusive focus on premium high-nickel formulations. LG Chem, EcoPro BM, and POSCO Future M have initiated pilot-line qualification batches and commercial supply agreements for manganese-doped phosphate active materials, aiming to defend global market share against Chinese lithium iron phosphate manufacturers. The strategic shift directly targets procurement programs at North American and European automakers that require lower cell pack costs for mass-market electric vehicles while remaining compliant with Western trade regulations.

For more than a decade, the South Korean battery materials sector concentrated its research and capital deployment on high-nickel nickel-cobalt-manganese and nickel-cobalt-aluminum chemistries, which deliver high volumetric energy density for luxury and long-range vehicles. However, prolonged retail price competition in entry-level and mid-tier electric vehicle segments has expanded the market share of standard lithium iron phosphate chemistry to more than 65 percent of global cell installations. Chinese chemical refiners and cell producers, led by Contemporary Amperex Technology and BYD, built commanding economies of scale in standard phosphate cells, pricing them between 20 percent and 30 percent below comparable nickel-based alternatives. South Korean chemical majors are using manganese addition as a direct technological countermeasure to bridge the performance gap between low-cost iron phosphate and energy-dense nickel formulations.

Lithium manganese iron phosphate introduces manganese into the crystal olivine lattice of traditional iron phosphate at typical molar ratios ranging between 60 to 40 and 80 to 20 manganese to iron. The incorporation of manganese raises the electrochemical discharge potential from approximately 3.2 volts to 3.7 volts versus lithium, enabling a theoretical 15 percent to 20 percent increase in gravimetric energy density without requiring expensive nickel or cobalt inputs. The resulting active material operates across the voltage range of conventional nickel-manganese-cobalt cells, allowing module and battery pack designers to maintain existing battery management systems, cell-to-pack architectures, and thermal containment envelopes without extensive mechanical redesigns.

LG Chem has accelerated the qualification schedule for its proprietary manganese-rich phosphate active materials across facilities in Cheongju and Gumi, South Korea. The company completed preliminary bench-scale thermal stability and cycle-life verifications, logging over 1,500 continuous charge-discharge cycles at an average capacity retention rate exceeding 80 percent under standard ambient testing conditions. LG Chem is configuring pilot lines capable of annual production volumes in the low thousands of metric tons, with initial customer sampling focused on European automotive original equipment manufacturers seeking mid-segment options. The chemical producer is leveraging its internal supply chain for refined manganese sulfate and lithium carbonate to control precursor precipitation costs.

EcoPro BM, South Korea’s largest cathode supplier by volume, has converted dedicated research and development lines at its Ochang campus to evaluate high-tap-density manganese iron phosphate powders. The company is testing specialized surface coating technologies, utilizing conductive carbon layers and atomic-layer metal oxide doping to overcome the poor electrical conductivity and manganese dissolution problems that historically limited the commercial adoption of manganese-rich olivine chemistries. EcoPro BM outlined an operational timeline to establish multi-thousand-ton commercial capacity by late 2026, positioning the material to feed cylindrical and prismatic cell production lines operated by its joint venture partners and global cell manufacturers.

POSCO Future M is approaching the chemistry transition through an integrated raw material procurement strategy, linking upstream mineral refining assets with synthetic precursor manufacturing lines in Pohang and Gwangyang. The company is validating low-defect chemical precipitation processes that synthesize manganese-iron-phosphate composite precursors directly from industrial-grade iron scrap and refined manganese salts, eliminating multiple intermediate dissolution stages to compress conversion costs. POSCO Future M is optimizing its pilot material for both pure manganese-iron-phosphate applications and blend formulations that mix low-cost phosphate powders with standard nickel-rich active materials to create mid-nickel composite electrodes.

For automotive procurement executives in North America, the availability of qualified South Korean manganese-doped phosphate cathode supplies addresses a critical regulatory and cost dilemma. United States rules under the Inflation Reduction Act exclude electric vehicles from full consumer tax credits if active battery materials are extracted, processed, or manufactured by designated Foreign Entities of Concern. Because Chinese supply chains control more than 90 percent of global lithium iron phosphate cathode capacity, North American automakers have struggled to procure compliant, low-cost phosphate cells for entry-level models assembled in the region. Securing industrial volumes from South Korean production hubs or planned overseas satellite plants provides a pathway to cost-competitive standard-range cell packs that qualify for Section 30D consumer credits and Section 45X manufacturing subsidies.

In the European Union, the impending phase-in of the Critical Raw Materials Act and the EU Battery Regulation imposes strict carbon footprint reporting, mandatory recycled content thresholds, and geographical diversification mandates on raw material sourcing. European automotive groups have issued multiple requests for quotations for mid-range cell chemistries delivering cell-level energy densities between 220 and 240 watt-hours per kilogram at pack-level manufacturing costs below $80 per kilowatt-hour. South Korean cathode suppliers are tailoring their technical datasheets to meet these requirements, pitching manganese-iron-phosphate as a chemically robust solution with significantly lower embedded supply-chain carbon metrics than high-nickel alternatives that rely on energy-intensive smelting and refining operations.

The economic viability of the chemical pivot depends on solving lingering manufacturing yield issues associated with manganese dissolution at elevated operating temperatures. When operated above 45 degrees Celsius, manganese ions in unoptimized crystal structures tend to dissolve into organic liquid electrolytes, migrating toward the anode and poisoning the solid electrolyte interphase layer, which accelerates cell capacity degradation. South Korean technical teams are addressing this degradation mechanism through optimized surface coating matrices, single-crystal particle growth controls, and co-doping with small concentrations of aluminum, magnesium, and titanium. Cell makers evaluating these early samples report high-temperature cycle performance approaching parity with commercial-grade standard iron phosphate.

Capital expenditure allocations among South Korean battery materials firms reflect this shift in product portfolios. While previous multi-year investment plans concentrated heavily on ultra-high-nickel capacity with nickel contents exceeding 90 percent, revised capital budgets submitted to regulatory authorities allocate up to 25 percent of upcoming equipment procurement to phosphate-handling synthesis systems, specialized kilns, and carbon-coating reactors. Equipment suppliers based in South Korea, including automated precision calcination kiln manufacturers and chemical mixing machinery builders, have received design modifications for inert-atmosphere processing lines optimized for phosphate-based active material calcination.

South Korean cathode manufacturers are scheduled to conclude the first round of joint pilot qualification trials with North American and European automotive cell joint ventures by the fourth quarter of 2026, at which point participating automakers will determine commercial production volumes and formal off-take commitments for 2027 and 2028 vehicle model years.

## Impact map

| Event | Korea | China | Japan | Global impact |
| --- | --- | --- | --- | --- |
| LMFP cathode shift | capital retooling | LFP price competition | equipment sourcing | entry EV cost reduction |

## In this story

- **Companies:** LG Chem, EcoPro BM, POSCO Future M
- **Tickers:** 051910.KS, 247540.KQ, 003670.KS
- **Exposed:** Contemporary Amperex Technology, BYD, LG Energy Solution, Samsung SDI, SK on
- **Policy:** Subsidies, Tariffs, Economic Security
- **Impact:** Supply Chain, Capex, Pricing, Cost Structure

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Cite as: East Asia Brief, "Korean cathode makers retool production lines for LMFP chemistry as price war spreads," August 28, 2026. https://eastasiabrief.com/batteries-ev/korean-cathode-makers-retool-production-lines-lmfp-chemistry-price-16