PER, EPS, PBR and BPS are calculated in-house from the last 4 quarters (2025Q3–2026Q2) · Dividend yield is based on ₩270 per share · Prices as of the 2026-10-02 close
Inzi Controls posted a clear improvement in 2025 revenue and operating profit, but quarter-to-quarter net income volatility and disclosure risks tied to overseas subsidiary investment and debt guarantees have also come into focus.
2025 revenue reached KRW 717.9bn with operating profit of KRW 39.6bn, a marked improvement, as operating margin rose from 3.0% in 2022 to 5.5% in 2025
Owner net income over the last five quarters swung sharply from KRW 1.5bn to KRW 11.7bn, to a loss of KRW 9.1bn, then to KRW 6.0bn and KRW 15.5bn
The company reportedly signed a supply contract with Hyundai Mobis for EV battery components (six SENSING ASSY types) equivalent to roughly 66% of 2025 revenue
In August 2026 the company decided to acquire 100% of Slovak entity Nexplus SK and lend to its Hungarian subsidiary, expanding overseas investment even as debt-guarantee disclosures were repeatedly corrected
The debt ratio fell from 197.8% in 2024 to 169.3% in 2025, even as cash and cash equivalents declined sharply
Founded in 1978, Inzi Controls is an auto parts manufacturer whose core products are thermostats and temperature sensors used for engine thermal control, holding a domestic market share of over 90% in this category.
Its fuel pressure regulator, localized through a technology partnership with Robert Bosch, is produced at over 10 million units annually and also commands a high market share.
Through subsidiaries such as Inzi Display, the company also runs an electronic components business, and has recently expanded into EV battery-related components and battery module operations.
Major customers include large parts and vehicle groups such as Hyundai Mobis, and the company's thermal-management and sensor lineup spans internal-combustion, hybrid, and electric powertrains.
Overseas production bases include subsidiaries in Alabama (US), Slovakia, and Hungary, and in August 2026 the company decided to acquire 100% of Slovak entity Nexplus SK, expanding its European EV battery component production footprint.
Competitively, the company holds a dominant position in domestic thermal-management and sensor products, while its EV battery module and component business is at an earlier growth stage facing multiple electronics and battery parts competitors.
Overall, the portfolio combines a stable cash-generating traditional engine parts base with a growth-oriented electrification segment.
| Quarter | Revenue | Operating profit | Op. margin |
|---|---|---|---|
| 2025Q2 | ₩175.7B | ₩12B | 6.9% |
| 2025Q3 | ₩182B | ₩12.4B | 6.8% |
| 2025Q4 | ₩178.9B | ₩5.4B | 3.0% |
| 2026Q1 | ₩178.5B | ₩9.8B | 5.5% |
| 2026Q2 | ₩183.7B | ₩9.3B | 5.1% |
| Year | Revenue | Operating profit | Net income (parent) | Op. margin | ROE | Debt-to-equity |
|---|---|---|---|---|---|---|
| 2022 | ₩570B | ₩17.1B | ₩13.9B | 3.0% | 7.1% | 194.3% |
| 2023 | ₩634B | ₩20.9B | ₩14B | 3.3% | 6.6% | 194.8% |
| 2024 | ₩649.3B | ₩26.4B | ₩10.2B | 4.1% | 4.6% | 197.8% |
| 2025 | ₩717.9B | ₩39.6B | ₩16.1B | 5.5% | 7.0% | 169.3% |
Consolidated basis (financial statements including subsidiaries) · Final figures from DART filings · Net income attributable to owners of the parent · Data as of 2026-08-23
Inzi Controls' annual revenue rose for four consecutive years, from KRW 570.0bn in 2022 to KRW 634.0bn in 2023, KRW 649.3bn in 2024, and KRW 717.9bn in 2025.
Operating profit also climbed steadily over the same period, from KRW 17.1bn to KRW 20.9bn, KRW 26.4bn, and KRW 39.6bn, with operating margin improving each year from 3.0% to 3.3%, 4.1%, and 5.5%.
Owner net income fell from KRW 13.9bn in 2022 and KRW 14.0bn in 2023 to KRW 10.2bn in 2024, before recovering to KRW 16.1bn in 2025.
Operating cash flow dropped from KRW 83.5bn in 2023 to KRW 30.0bn in 2024 before rebounding sharply to KRW 75.9bn in 2025, showing that profit improvement translated into actual cash generation.
On a quarterly basis, owner net income was only KRW 1.5bn in the second quarter of 2025 before surging to KRW 11.7bn in the third quarter, then swinging to a loss of KRW 9.1bn in the fourth quarter, illustrating substantial volatility.
The company returned to profit in the first and second quarters of 2026, posting KRW 6.0bn and KRW 15.5bn respectively.
These quarter-to-quarter net income swings are far larger than the movements in revenue or operating profit, suggesting the influence of equity-method gains and losses or one-off items tied to overseas subsidiaries.
The debt ratio gradually declined from 194.3% in 2022 to 169.3% in 2025, indicating a modest improvement in the balance sheet structure.
The global vehicle market has entered a mature phase and demand growth for electric vehicles has slowed (the so-called EV chasm), while currency and raw material price volatility continue to affect parts makers' results in complex ways.
In the first quarter of 2026, consolidated revenue declined slightly year on year, yet operating profit edged up modestly thanks to customer cooperation and cost reductions.
Automakers continue to expand their hybrid and electric vehicle portfolios, which in turn is driving demand for battery system and module components.
Inzi Controls maintains a stable position in traditional thermal-management and sensor products on the back of its dominant domestic share, but is a relative latecomer in battery modules and EV components, facing both room for share gains and intensifying competition.
High revenue concentration with large automotive groups such as Hyundai Mobis exposes the company to shifts in any single customer's production or sourcing policy.
Across the industry, as the pace of electrification adjusts and inventories are recalibrated, parts suppliers are broadly moving to expand production footprints and cost competitiveness in preparation for renewed growth once the chasm passes.
The company has stated a policy of strengthening thermal-management product competitiveness and expanding its battery module business globally in preparation for eco-friendly vehicle market growth once the EV chasm passes.
Backing this direction, in August 2026 it decided to acquire 100% of Slovak entity Nexplus SK, and around the same time lent USD 12 million (about KRW 16 billion) to its Hungarian subsidiary to build out overseas production capacity.
According to media reports, the EV battery component (six SENSING ASSY types) supply contract signed with Hyundai Mobis is valued at KRW 475.7bn, which is expected to contribute to revenue over the coming years, although the exact recognition schedule by year has not yet been specifically confirmed.
The company's US subsidiary in Alabama has previously been in a state of capital impairment, requiring the parent to inject funds via equity purchases, so the normalization of that unit's balance sheet is worth monitoring going forward.
Because the 2025 audit report flagged impairment assessments of investments in subsidiaries, related receivables, and cash-generating units as a key audit matter, asset quality management related to overseas subsidiaries could remain a meaningful variable for future results.
The fact that six of seven debt-guarantee decision disclosures between March and August 2026 were subsequently corrected suggests that the details of certain external transactions remain fluid, warranting follow-up confirmation once finalized.
The stock tends to trade at a level below its net asset value per share, which is worth assessing against the valuation range the market has historically assigned relative to shareholders' equity.
On the earnings side, the data confirm a shift from the profit slowdown seen in 2024 toward a recovery trend from 2025 onward.
Regarding dividend policy, the company has a track record of paying cash dividends, though the absolute attractiveness of the payout level should be compared with other parts makers in the sector.
The large volatility in quarterly net income can act as a source of uncertainty in how the market assigns valuation, a factor not fully explained by annual results alone.
Ultimately, valuation appears to reflect a combination of the stable cash flow from the traditional parts business, the growth potential of the electrification segment, and risks tied to overseas investments.
PER, EPS, PBR and BPS are all calculated in-house (the same method as Naver and Toss) · Dividend yield = cash dividend per share from DART filings (supplemented by KRX) ÷ current price · As of 2026-08-23
Operating margin rose every year from 3.0% in 2022 to 5.5% in 2025. This appears to reflect a combination of revenue growth, cost reduction, and customer collaboration. Even in the first quarter of 2026, when revenue slipped slightly, operating profit still increased, pointing to cost-structure management capability.
According to media reports, the EV battery component supply contract signed with Hyundai Mobis is worth KRW 475.7bn, equivalent to about 66% of 2025 revenue.
If executed as planned, it could broaden the company's revenue base over the coming years, though the precise recognition schedule has not yet been specifically confirmed.
The debt ratio fell from 197.8% in 2024 to 169.3% in 2025. Operating cash flow also rose sharply from KRW 30.0bn in 2024 to KRW 75.9bn in 2025, showing that profit improvement translated into actual cash inflows, which could be a positive factor for future funding of investments.
Owner net income over the last five quarters swung widely between KRW 1.5bn, KRW 11.7bn, a loss of KRW 9.1bn, KRW 6.0bn, and KRW 15.5bn.
This swing, far larger than the movement in revenue or operating profit, suggests the influence of equity-method gains and losses or one-off items, which could reduce the reliability of future earnings projections.
According to media reports, cash and cash equivalents fell more than 70%, from KRW 37.85bn to KRW 10.52bn, in 2025. Investing cash flow was negative KRW 44.93bn, nearly double the outflow of the prior year, and financing cash flow flipped from a net inflow to a net outflow. Overseas subsidiary investment and debt repayment together appear to have reduced cash reserves.
The US subsidiary in Alabama had previously been in a state of capital impairment, requiring repeated capital injections from the parent through share purchases. The 2025 audit report also flagged impairment assessments of investments in subsidiaries and cash-generating units as a key audit matter.
The fact that six of seven debt-guarantee decision disclosures in 2026 were subsequently corrected is also worth watching from a disclosure-transparency standpoint.
Investments, loans, and equity acquisitions continue across multiple overseas subsidiaries in the US, Slovakia, and Hungary. Some subsidiaries have previously experienced capital impairment, raising the possibility of further capital injections being needed.
The audit report has also flagged impairment assessments of related assets as a key audit matter, warranting continued monitoring of asset quality.
Between March and August 2026, six of seven debt-guarantee decision disclosures were subsequently corrected, indicating frequent amendment filings. This suggests either uncertainty at the initial disclosure stage or changes in detailed terms.
Continued monitoring of follow-up disclosures is warranted from a transparency standpoint regarding external transactions.
As the global vehicle market matures and the EV chasm persists, the pace of demand growth in end markets could slow. Currency and raw material price volatility are also variables that can affect parts makers' margins.
High revenue dependence on large customers such as Hyundai Mobis leaves the company exposed to shifts in any single customer's policies.
Check whether Q3 revenue and operating profit trends hold and whether net income volatility recurs, including the impact of equity-method or other one-off items.
Confirm the completion timing of the 100% acquisition of Slovak entity Nexplus SK, the consolidation method, and any related asset impairment assessment results.
Monitor how the USD 12 million loan is utilized, the repayment plan, and any changes in the financial condition of the Hungarian subsidiary.
Verify the final confirmed content and scale of the frequently amended debt-guarantee decision disclosures to assess whether governance and disclosure risk has eased.
Check the start of revenue recognition and the year-by-year volume allocation for the EV battery component (SENSING ASSY) supply contract with Hyundai Mobis.
Inzi Controls delivered steady revenue and operating profit growth from 2022 through 2025, with operating margin improving each year. However, quarterly owner net income ranged widely, from KRW 1.5bn to KRW 15.5bn and even a loss of KRW 9.1bn, revealing volatility that annual figures alone do not capture.
The large battery component supply contract with Hyundai Mobis and expanding overseas investments in Slovakia and Hungary could serve as future growth drivers, but the past capital impairment at the US subsidiary and repeated corrections to debt-guarantee disclosures remain risks to be managed.
On the balance sheet, signs of improvement are evident, including a lower debt ratio and recovering operating cash flow, though cash and cash equivalents fell sharply due to large investments and debt repayment.
Overall, the picture combines positive factors—steady profitability improvement in the traditional parts business and expansion into electrification—with negative factors such as overseas subsidiary risk and earnings volatility.
Investors will want to continue tracking third-quarter results, the progress of the Nexplus SK acquisition, and follow-up disclosures related to debt guarantees to gauge how these factors evolve.
Report written 2026-09-05 · Data as of 2026-09-04
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