Youil Energy Tech, Listed Anseong Notching and Stacking Specialist

Youil Energy Tech Co., Ltd. is a secondary battery notching/stacking automation equipment company founded in 2012, handling the core process of cutting electrode plates into finished electrode sheets.

1. Company Overview

• Company Name: Youil Energy Tech Co., Ltd., Stock Code 340930 (KOSDAQ)
• Founded: 2012
• Headquarters: Anseong, Gyeonggi-do (relocated July 2023, new building with total floor area of 6,500 pyeong)
• Business Fields: Notching machines, stacking machines, tab welding machines, and automation equipment

2. History and Workforce

Founded in 2012, the company has focused on producing notching, stacking, and tab welding equipment — key equipment for manufacturing EV and ESS secondary batteries. It listed on KOSDAQ on February 25, 2021 (IPO price KRW 16,000, subscription competition ratio 1427.69:1), and relocated its headquarters to Anseong in July 2023, securing annual production capacity of KRW 300 billion at its new 6,500-pyeong building.

The company is also expanding into the eco-friendly energy equipment field by supplying hydrogen fuel cell material mass-production equipment to Doosan Fuel Cell. Detailed workforce composition is (undisclosed).

3. Core Technology and Key Equipment

The core is notching-process equipment that cuts cathode and anode electrode plates into the required shape, and the company is also researching and developing laser notching machines to address the limitations of existing press-type punching equipment (blade wear, uneven cut surfaces). Per THE ELEC, LG Energy Solution’s subsidiary HLI Greenpower has a case of switching from laser notching back to press notching, with the reasons cited being a safety concern (laser heat reacting with the cathode active material’s nickel, cobalt, and manganese, potentially producing sparks and fumes) and a process-control challenge — a trade-off between active-material loss and fume generation depending on insulation-coating thickness. This context aligns with Youil Energy Tech’s strategy of keeping press-type notching as its mainstay while developing laser notching in parallel as a separate lineup.

• Notching machine (press type) — flagship equipment, electrode plate cutting
• Stacking machine — stacks notched electrode plates together with the separator
• Tab welding machine — welds tabs on stacked electrode plates
• Laser notching machine, solid-state battery equipment, notching/stacking in-line equipment (next-generation lineup under development)

4. Production Infrastructure and Quality Assurance

The company has secured annual production capacity of KRW 300 billion at its new Anseong building (total floor area 6,500 pyeong).

5. Delivery Track Record and Partnerships

It is publicly known that in March 2024 the company supplied solid-state battery pilot-line assembly-process equipment to Hyundai Motor, and it has also supplied hydrogen fuel cell material mass-production equipment to Doosan Fuel Cell. Other individual delivery details to Korea’s 3 major battery makers are (undisclosed). Per BatteryDive, the bidding for Hyundai Motor’s solid-state battery pilot-line assembly-process equipment involved major domestic assembly-equipment makers including Hana Technology, M-Plus, and Media Tech, and Youil Energy Tech was confirmed to have won the contract exclusively (March 2024). Per CEOSCOREDAILY (June 2024), the company disclosed a ₩6.1 billion contract for battery assembly-process manufacturing equipment (cathode molds and anode laser notchers), running from June 5, 2024 to March 22, 2026; the counterparty was undisclosed citing business-confidentiality protection, though industry sources speculate it to be Taiwan’s solid-state battery maker Prologium (estimated, not officially confirmed by the company).

6. Financial Status and Roadmap

As a KOSDAQ-listed company (340930), its financial statements are disclosed through the Data Analysis, Retrieval and Transfer System (DART). Individual revenue and profit figures are not arbitrarily presented in this profile. Per Edaily (February 2026), the company disclosed consolidated revenue of approximately ₩60.0 billion for the prior fiscal year (up 0.55% year-on-year), an operating loss of approximately ₩4.55 billion (a 72.77% narrowing of the loss versus the prior year), and a net loss of approximately ₩20.5 billion (a 28.67% narrowing of the loss).

The company is developing a next-generation lineup including laser notching machines, equipment for solid-state batteries, and notching/stacking in-line equipment, while pursuing customer diversification. Per thebell (March 2025), the company is reportedly focusing on expanding its laser-notching technology into overseas markets.

This profile was written based on publicly available sources including Namuwiki, Securities Plus, and IRGO (Youil Energy Tech’s IR page), and unconfirmed figures or undisclosed information have not been arbitrarily stated.