Phil Energy, PHILOPTICS Affiliate in Laser Electrode Cutting

Phil Energy Co., Ltd. (a PHILOPTICS subsidiary) is a secondary battery electrode/assembly-process equipment subsidiary spun off from display laser equipment company PHILOPTICS.

1. Company Overview

• Company Name: Phil Energy Co., Ltd., Stock Code 378340 (KOSDAQ, listed independently in July 2023) — Parent Company: PHILOPTICS Co., Ltd., Stock Code 161580 (KOSDAQ)
• Parent Company Founded: February 2008 / Parent Company Listed: KOSDAQ, 2017
• Headquarters: Same region as parent company (near the Osan Segyo semiconductor materials/parts/equipment cluster)
• Business Fields: Secondary battery stacking/laser notching equipment (Phil Energy), semiconductor/display laser optical equipment (PHILOPTICS)

2. History and Workforce

PHILOPTICS was founded in 2008 and grew into a laser optics equipment specialist in the semiconductor and display fields, listing on KOSDAQ in 2017. It established Phil Energy via a spin-off to enter the secondary battery equipment business, and Phil Energy is developing next-generation battery equipment in parallel, based on its core stacking and notching equipment.

Together with its subsidiary Phil Energy (secondary batteries), PHILOPTICS has also recently been expanding into the glass substrate process equipment business for semiconductors (TGV, singulation). Detailed workforce composition is (undisclosed).

3. Core Technology and Key Equipment

The company states it has developed picosecond (one-trillionth-of-a-second)-class laser notching equipment that cuts electrode material with a laser, achieving more precise cutting, higher speed, and less heat loss compared to existing press-die notching.

• Picosecond laser notching equipment — precise cutting and low heat loss versus press method
• Stacking equipment — flagship product
• Winder for 4680 cylindrical batteries — recent order win
• UHP (Uniform & High Pressure) stacking equipment for solid-state batteries — development began in 2022; unveiled/demonstrated at InterBattery 2025 (Seoul, 2025-03-05–07); the company stated it is supplying customer pilot lines, though the customer’s identity is undisclosed (Bloter, reported 2025-03-07)
• Lithium-metal anode post-processing equipment (lineup expansion in progress)

4. Production Infrastructure and Quality Assurance

The company is based near the Osan materials/parts/equipment cluster together with parent company PHILOPTICS. Detailed plant area and capacity figures are (undisclosed).

5. Delivery Track Record and Partnerships

Electronic Times (전자신문) has reported that Korea’s Big 3 battery makers — LG Energy Solution, Samsung SDI, and SK On — are actively adopting laser notching equipment. Per a disclosure dated 2026-07-01 (DART), the company signed a secondary-battery assembly equipment supply contract worth KRW 71.19 billion (214.5% of FY2025 revenue); the contract period runs 2026-07-01 to 2027-03-30, with payment split 20/50/30. The counterparty was withheld for business-secret reasons. On 2024-07-17, the company secured an order for an integrated 46-phi ultra-high-speed laser-notching/winding winder from a European cylindrical cell maker (Newspim, reported 2024-07-19; contract amount undisclosed). Other individual contract details are (undisclosed).

6. Financial Status and Roadmap

Phil Energy listed independently on KOSDAQ in July 2023 (stock code 378340) and discloses its own financial statements. Per Digital Today (reported 2026-02-09, citing the filing), FY2025 revenue was KRW 33.194 billion, down 88.4% year-on-year from KRW 285.399 billion in 2024; the company posted an operating loss of KRW 22.174 billion and a net loss of KRW 15.848 billion, swinging to a loss from FY2024 net income of KRW 13.366 billion. The report attributed the deterioration to delayed capex by battery makers. Q1/Q2 2026 individual figures were not confirmed as of this profile’s writing and are not separately presented (needs confirmation).

The company is expanding its product portfolio by pursuing commercialization of picosecond laser notching equipment, the winder for 4680 cylindrical batteries, and UHP stacking equipment for solid-state batteries.

This profile was written based on publicly available sources including The Electronic Times, Digital Daily, THE VC, and Hana Securities Research, and unconfirmed figures or undisclosed information have not been arbitrarily stated.