Green Optics

Green Optics is an ultra-precision optical total-solution provider that has vertically integrated the entire manufacturing chain from optical design, machining, polishing, and coating through to assembly and inspection.

As of Q3 2025, revenue by segment breaks down as defense 55%, display 21%, ZnS optical materials 10%, semiconductor 7%, aerospace 3%, and other 4% — with defense consistently expanding its share over recent years.

The defense segment supplies guided-weapon seekers, EO/IR surveillance systems, ring laser gyroscopes, and laser air-defense optical modules to major Korean defense primes such as LIG Nexone and Hanwha Systems.

The optical materials business manufactures ZnS (zinc sulfide) — a strategic commodity essential for seeker domes, stealth aircraft, and missile-defense systems — using a proprietary CVD process, making the company the only domestic ZnS producer.

With only ~10 companies worldwide capable of producing this material, Green Optics operates in a supply-side-favorable market, exporting to Israel, the US, and Japan.

The display segment supplies optical systems for OLED manufacturing equipment, while the semiconductor segment is advancing ultra-precision optics for HBM inspection equipment under long-term agreements with global Tier-1 tool makers.

In aerospace, the company has supplied components for Korea's STSAT-3 and DANURI missions and has delivered NASA- and ISRO-qualified K-DRIFT off-axis aspherical telescopes.

Competitively, Green Optics occupies a specialized niche as a critical component supplier to defense system integrators, a structure that affords relatively stable pricing and recurring demand.

Unlike domestic peers that depend heavily on a single equipment customer, Green Optics' diversified end-market exposure and vertically integrated production represent high structural barriers to entry.

For full-year 2025, Green Optics reported consolidated revenue of KRW 41.8bn (+31.6% YoY) and operating profit of KRW 2.2bn (+1,028.1% YoY), marking record results according to a March 2026 Bloter report. Net profit reached approximately KRW 2.1bn (+378.6% YoY).

The earnings surge was driven by simultaneous strength in both defense and ZnS materials, with the optical materials segment alone nearly tripling — from KRW 2.0bn to KRW 4.8bn (+140%).

In 2024, revenue had been KRW 31.7bn (+18.7% YoY) with a modest return to operating profit from a prior-year operating loss of KRW 1.6bn. Export revenue mix expanded sharply from 13.3% in 2023 to 25.6% in 2024, and total order backlog as of H1 2025 stood at a record KRW 62.3bn.

On the stock side, shares debuted on KOSDAQ on November 17, 2025 at an IPO price of KRW 16,000, briefly touching KRW 55,000 intraday before closing at KRW 22,850 (+42.8%).

The stock then slid to the KRW 13,800–14,000 range by mid-December 2025, inflicting significant losses on retail investors, before recovering to the KRW 26,000–28,000 range in January 2026 on the back of analyst coverage initiation.

As of June 5, 2026, the stock trades at KRW 21,700 (+2.36%), approximately 35.6% above the IPO price.

On the balance sheet, IPO proceeds lifted the current ratio from 94.2% (end-2024) to 249.8% (end-2025), though operating cash flow remained negative at KRW –8.1bn as the company builds inventory to fulfill defense delivery schedules.

The 2026–2027 period is seen as a critical growth window in which defense mass production and global ZnS material supply expansion converge simultaneously.

Eugene Securities forecasts 2026 revenue of KRW 67.7bn and operating profit of KRW 6.4bn, rising to KRW 91.3bn revenue and KRW 15.0bn operating profit in 2027 — broadly consistent with the company's own guidance (as of January 2026 reports).

In defense, the EO/IR upgrade program for the UH/HH-60 helicopter overhaul project with Korean Air and LIG Nexone is slated to enter serial production from 2027, potentially driving a step-change in defense segment revenue.

In ZnS materials, the addition of HIP equipment alongside existing CVD facilities strengthens MS-ZnS production capability, and the April 2026 OPIE 2026 exhibition in Yokohama has catalyzed long-term supply discussions with Japanese major manufacturers.

In semiconductors, AOTF-based hyperspectral imaging is in stress-testing for HBM inspection applications, and successful adoption could meaningfully expand the semiconductor business.

Over the longer term, the company aims to pivot toward aerospace as its primary growth pillar, leveraging its selection as the sole Korean company in the US Space Force Mini Accelerator Cohort 4.

Nonetheless, the 30–50% annual revenue growth targets are sensitive to the pace of backlog conversion, ZnS yield stabilization, and the timing of defense budget disbursement.