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Kinsus
Taiwan's third package substrate maker, and how it is riding the AI wave

Kinsus is a Taiwanese maker of IC package substrates. In its own annual report the company writes that high-layer-count ABF substrates for servers are "increasingly concentrated in companies such as Ibiden, UMTC (Unimicron) and Kinsus", placing itself among the handful of participants in this field. It buys Ajinomoto Build-up Film and builds substrates with it, and it is not an OSAT, which mounts the die on the board. This profile places the company using only figures from its annual report, its monthly revenue announcements and its investor presentations.

Sources: Kinsus's 2025 Annual Report (English summary edition, issued 22 April 2026), its 2023 Annual Report (for the five-year condensed financial statements), its monthly revenue announcements and its investor presentations, used as primary material. Amounts are in New Taiwan dollars (NT$). Last updated September 2026.

What this article covers
  1. Kinsus in 30 seconds
  2. The logo and how the name is written
  3. What the company actually does: substrates and optics
  4. Scale: five years of revenue
  5. Company category and position in the back-end industry
  6. Sites and the countries where it manufactures
  7. Leading products and share in semiconductor back-end work
  8. Current investment plans
  9. Major corporate partners and the customers it discloses
  10. Where the company is heading in this field
  11. The risks this company carries
  12. Glossary, references and claim-to-source audit

1. Kinsus in 30 seconds

LEGAL NAMEKINSUS INTERCONNECT TECHNOLOGY CORP.Incorporated in Taiwan; known internationally as Kinsus
HEADQUARTERSTaiwan1245 Zhonghua Road, Xinwu District, Taoyuan, at the Shih-Lei plant
FOUNDEDSeptember 2000Listed on the Taiwan Stock Exchange on 1 November 2004
LISTINGTaiwan Stock Exchange 3189No overseas listing. 526,925,960 shares issued as of 29 March 2026
2025 REVENUENT$39.4bn
(39,351 NT$m)
Up 28.9% year on year. Net profit NT$2.7bn (2,717 NT$m)
EMPLOYEES6,735End 2025. Of these 1,154 in R&D and engineering, 5,121 on the shop floor
CATEGORYManufacturer
(IC package substrates)
82.1% of revenue is substrates, 17.9% optics
LATEST FINANCINGCash share issue in March 202670 million new shares. Paid-in capital from NT$4.57bn to NT$5.27bn
The one thing to grasp first

Of the three companies in this group, Ibiden, Unimicron and Kinsus, Kinsus is the smallest and the most volatile. Revenue peaked before the AI boom, at NT$42.4bn in 2022, fell 36.8% to NT$26.8bn in 2023, and had recovered to NT$39.4bn by 2025 Our calculation. And in that 2025 recovery, revenue rose while gross margin fell from 28.4% to 21.1% Our calculation. So much for "AI demand means every substrate maker is doing well". The numbers here say otherwise, and sections 4 and 7 explain why.

2. The logo and how the name is written

The Kinsus logo is a registered trademark of the company. Nothing here is an AI reconstruction of the mark: the frame above holds the official logo image taken from the company's own site. A logo redrawn to look approximately right is wrong both as a trademark and as a fact.

A note on the name: the full corporate name is KINSUS INTERCONNECT TECHNOLOGY CORP., and in ordinary use simply Kinsus. Its filings in Taiwan carry a local-language legal name alongside the English one, but the English form is the one the company uses on its global site and in its investor material, and it is the form used throughout this article.

Official site: https://www.kinsus.com.tw/en

3. What the company actually does: substrates and optics

The company splits 2025 consolidated revenue into just two divisions Sourced.

DivisionRevenue (NT$ thousand)Share
Division of Substrates32,311,84582.11%
Division of Optics7,039,25117.89%
Total39,351,096100.00%

Semiconductors sit in the substrates division. The optics division is run by PegaVision, a subsidiary in Taoyuan, Taiwan, but what it actually makes could not be established from Kinsus's own primary material Not yet confirmed.

The substrates division makes IC package substrates of various kinds. Rendered in plain terms, the current products the annual report lists are these Sourced.

PBGA and MCM-BGA
Substrates for packages where the die sits on a resin board with solder balls arrayed on the underside. MCM means several dies on one board.
FCBGA, the ABF substrate
The die is flipped and bonded directly to the board. For large, high-power dies, with an ABF class material as the interlayer dielectric. This is the one that matters in AI servers.
FCCSP and CSP
Substrates for small packages roughly the size of the die itself. Used in smartphones and similar devices.
Coreless substrate
A thin substrate built without the rigid core at the centre of the board. For applications where thinness is required.
Embedded component substrate
Passive or active components buried inside the board itself, which frees up mounting area on the surface.
COF (Chip on Flex)
Mounting the die on a flexible board. Used for display driver ICs among other things.
A materials engineer's view: doing both ABF and BT is claimed as a strength

Under competitive strengths the annual report says: "the company operates dedicated plants covering the entire process and can provide a one-stop solution for both ABF and BT substrates. It has also introduced AI-based process monitoring" Sourced.

ABF and BT are different families of interlayer dielectric, different materials with different process conditions. ABF is laminated as a film under vacuum; BT uses a glass-fibre prepreg. Running both through the same factory means carrying two sets of equipment and two quality systems. Presenting that as a strength says something: customers still choose between the two families by generation and by product, and from the materials side it means demand has not collapsed onto ABF alone.

4. Scale: five years of revenue

Kinsus consolidated revenue (NT$ billion) The year ends 31 December. No U.S. dollar translation is published, so figures stay in NT$ 50 40 30 20 10 0 35.7 42.4 26.8 30.5 39.4 2021 2022 2023 2024 2025 Down 36.8% in 2023 from the 2022 peak, and still short of that peak in 2025
Fig. 1 Kinsus consolidated revenue, 2021 to 2025. Source: for 2021 to 2023, the condensed five-year consolidated statement of comprehensive income in the 2023 Annual Report; for 2024 and 2025, the 2025 Annual Report. The rate of decline is our own arithmetic Our calculation.
YearRevenue (NT$ thousand)Gross profit (NT$ thousand)Gross marginOperating profit (NT$ thousand)Net profit (NT$ thousand)
202135,672,76310,525,84529.5%5,004,5664,492,108
202242,441,05415,711,55637.0%9,576,3397,933,470
202326,832,1876,757,50625.2%1,042,2471,170,402
202430,534,9798,667,72528.4%1,095,4191,331,050
202539,351,0968,314,40921.1%2,669,8132,717,328

Gross margins are our own arithmetic Our calculation. In 2025 both revenue and profit rose, yet the margin is the lowest of the five years. Note also that net profit includes non-controlling interests, such as the optics subsidiary, so the amount attributable to owners of the parent is smaller.

Read it this way. Operating profit of NT$9,576m in 2022, a 22.6% operating margin, is what this company looks like at its best Our calculation. When smartphone and PC demand collapsed in 2023, operating profit fell to nearly a tenth of that, and although revenue has recovered a good deal by 2025, operating profit is still only NT$2,670m, or 6.8%.

2026 is running higher again. On the monthly announcements, January to August 2026 totalled NT$32,960m against NT$24,953m in the same months of 2025, up 32.1% Our calculation. August alone was NT$4,810m, up 40.6% on the same month a year earlier Sourced.

5. Company category and position in the back-end industry

The category is manufacturer, specifically a board maker. Kinsus's investor presentation carries a semiconductor supply chain diagram, and the order of the boxes in it is the answer Sourced.

The company's own labelWhat it doesRepresentative companies
IC design (fabless)Designs the chip. Owns no fabNVIDIA, AMD and others
FoundryMakes the wafer, the front endTSMC, UMC and others
Substrate house
(Kinsus is here)
Buys materials and builds the board the die sits onKinsus, Unimicron, Ibiden and others
OSATMounts the die on the board, encapsulates it and tests itASE Group, Amkor and others

In the company's diagram, wafers flow from the foundry and substrates flow from the substrate house, both into the OSAT, which then performs IC packaging.

How a substrate maker differs from an OSAT, and why the substrate is the bottleneck

An OSAT does not make boards. Its job is to put a die on a board it has bought. So if the board does not arrive, no amount of idle OSAT capacity finishes the package. In the annual report's own words, the package substrate is "a raw material, or a carrier component, for the semiconductor packaging industry", and Kinsus sells to "IC packaging houses, design houses and system houses at home and abroad" Sourced.

And the further AI substrates go towards larger sizes and more layers, the more process steps each board takes, and the fewer good boards a given set of equipment produces. Adding capacity starts with putting up a building, which takes years. Supply falls structurally behind the speed at which demand grows: that is the substance of "the substrate is the bottleneck".

Breakdown of 2025 revenue of NT$39.4bn - by business and by region Upper bar by business division, lower by sales region. Both as disclosed in the annual report By business IC substrates 82.1% Optics 17.9% By region Taiwan 25.6% U.S. 24.7% China 16.5% Japan 12.6% Other 20.5% Substrate revenue of NT$32.3bn matches parent-only revenue almost exactly: the parent builds the boards The United States takes 24.7%, so the mix is not tilted to Taiwan and China the way Unimicron's is Japan takes 12.6%. Note that this is where customers sit, not where production sits
Fig. 2 The 2025 revenue mix. Source: the 2025 Annual Report. The comparison with parent-only revenue is our own arithmetic Our calculation.

6. Sites and the countries where it manufactures

Manufacturing is in two countries, Taiwan and China, with a sales subsidiary in California Sourced.

SiteCountryRole
Shih-Lei plantTaiwan (Xinwu District, Taoyuan)Head office site. IC package substrates
Tsing-Hua plantTaiwan (Xinwu District, Taoyuan)IC package substrates
Xing-Feng plantTaiwan (Xinfeng Township, Hsinchu County)IC package substrates
Youth plantTaiwan (Yangmei District, Taoyuan)Acquired in 2021. Designated by the company as the site for high value-added products
Kinsus SuzhouChina (Suzhou, Jiangsu)Manufacturing subsidiary inside the export processing zone
Piotek Computer (Suzhou)China (Suzhou, Jiangsu)Group company in the same export processing zone
Kinsus USAUnited States (Santa Clara, California)Sales and technical support. No manufacturing
PegaVisionTaiwan (Taoyuan)The subsidiary that runs the optics business

The investor presentation refers to the Taiwanese substrate plants as Plants 1 and 2 and Plants 5 and 6. Capacity by site is not published Not yet confirmed.

A materials engineer's view: what a site in Santa Clara means

Kinsus keeps a subsidiary in Santa Clara, California. There is no plant there. The reason to hold a site anyway is that the design teams of its fabless customers are there. A package substrate cannot be settled unless the board-side constraints, layer count, line pitch, warpage, thermal expansion, are negotiated before the chip design is frozen. That is why sales into the United States are 24.7% of revenue, almost level with Taiwan at 25.6% Sourced. Seen from a materials supplier's side, it means the adoption decision can move first in a design office in the United States, not in a plant in Taiwan.

7. Leading products and share in semiconductor back-end work

The competitive structure, as the company itself describes it

On the package substrate market, Kinsus's annual report says the following Sourced.

From the market share section of the annual report, in summary

"The world IC substrate market is held by Japan, Taiwan and Korea, split roughly evenly between the three. High-layer-count ABF substrates for servers are increasingly concentrated in companies such as Ibiden, UMTC (Unimicron) and Kinsus. In memory, SIMMTECH of Korea holds a high share with the support of its group company SK hynix. Worth noting is that low-end ABF substrates and BT substrates are currently in oversupply. For mid-range and lower substrate products, as some competitors exit the market, orders are gathering with the incumbents that have economies of scale."

This is the important part. The company is saying, in its own words, that high-layer-count ABF is concentrating while low-end ABF and BT are in oversupply. The same phrase, "package substrate", covers two markets in completely different conditions. It also explains why revenue grew 28.9% in 2025 while gross margin fell to 21.1% Our calculation.

On market share, stated plainly

What could not be confirmed

Kinsus discloses no numerical market share of its own. The market figures in the annual report, the even three-way split between Japan, Taiwan and Korea and a compound growth rate of 10.9%, are all explicitly attributed to a report by the research firm Prismark, so they are not primary material. This article does not adopt them Not yet confirmed. What it does use is the description of competitive structure written as the company's own observation, in the box above, together with the actual revenue and profit figures.

Technologies under development

The development items named in the annual report and the chairman's message are these Sourced.

Development itemPurpose
Expanding ABF FC-BGA substrate capabilityMeeting higher layer counts and higher frequencies over the medium to long term. The company lists this first among its key production and sales policies
Glass core substrates and co-packaged optics (CPO)Staying continuously involved in customer R&D, and building out the material systems and processes those need
Introducing base materials with ultra-low expansion, high Tg and high modulusHandling the warpage and thermal stress that come with larger boards
Ultra-fine wiring under 8 microns, contact pitch under 30 micronsKeeping the board side in step with shrinking on the die side
Ultra-fine vias of 30 microns diameter or less, and via fillingHigher density in the layer-to-layer connections
High-layer-count coreless and embedded component substratesThinner boards and higher mounting density

8. Current investment plans

2025 INVESTING CASH FLOWMinus NT$7.9bnMinus 7,869 NT$m, an outflow equal to 20.0% of revenue
PROPERTY, PLANT AND EQUIPMENTNT$41.9bn41,937 NT$m at the end of 2025, up 15.2% year on year
PREPAYMENTS FOR EQUIPMENTNT$8.0bn8,001 NT$m, down from NT$12.6bn as deliveries were accepted
2026 R&D SPEND EXPECTEDNT$1.9bn1,914 NT$m, the figure the company states in the annual report

The centre of the investment is the Youth plant. Under the effect of major capital expenditure, the annual report says: "the company acquired the Youth plant in 2021 and has progressively constructed buildings and purchased production equipment. This facility will be the production site for high value-added products over the next several years" Sourced.

On the funding side, the company carried out a cash issue of 70 million shares in March 2026. Paid-in capital rose from NT$4,569.26m to NT$5,269.26m Sourced. Shares issued went from 456,926 thousand to 526,926 thousand, an increase of 15.3% Our calculation.

What could not be confirmed

Kinsus publishes neither the investment amount by plant nor how far the expansion multiplies capacity Not yet confirmed. On the use of proceeds from the March 2026 cash issue, the annual report refers readers to the Market Observation Post System (MOPS) for the execution status of the financing plan and gives nothing in the report itself Sourced. This article therefore does not assert that the proceeds are going into ABF substrate capacity.

9. Major corporate partners and the customers it discloses

Ownership: in substance the parent is the contract manufacturer Pegatron

Kinsus's three largest shareholders are all investment companies wholly owned within Pegatron Corporation Sourced.

ShareholderShares heldStakeParent
Asus Investment Co., Ltd.67,037,10412.72%Pegatron group
Asustek Investment Co., Ltd.64,924,00712.32%Pegatron Corp. (100%)
Asuspower Investment Co., Ltd.61,939,56711.76%Pegatron Corp. (100%)
Total of the three193,900,67836.80%-

As of 29 March 2026. The annual report states "Pegatron Corp. 100.00%" for Asustek Investment and Asuspower Investment. Asus Investment does not appear in that same table, so this article does not assert that it too is wholly owned by Pegatron Not yet confirmed. The combined stake is our own addition Our calculation. The chairman, Liao Sih-Jheng, is COO of Pegatron Corp., and other Pegatron executives sit on the board.

Customers: disclosed by letter

Revenue by customer - the largest account nearly doubled its share in a year From principal customers in the annual report. Taiwanese reports disclose customers by letter 2024 A 10.7% B 9.8% 5.8% Other 73.7% 2025 A 19.5% B 9.2% 5.2% Other 66.1% Top customer Second Third Other The third customer was labelled D in 2024 and C in 2025. The largest, A, grew 2.3 times in value The top three went from 26.3% of revenue in 2024 to 34.0% in 2025: concentration is rising
Fig. 3 How the customer mix changed. Source: principal customers, in the 2025 Annual Report. The percentages are as disclosed there; the multiple and the combined share are our own arithmetic Our calculation.
Item20242025
Largest customerA, NT$3,273m (10.72%)A, NT$7,677m (19.51%)
Second largest customerB, NT$2,990m (9.79%)B, NT$3,633m (9.23%)
Third largest customerD, NT$1,759m (5.76%)C, NT$2,051m (5.21%)
Largest supplierA, NT$1,380m (12.76% of purchases)A, NT$2,194m (14.23% of purchases)

Customers and suppliers are not named. The letters may be reassigned from year to year, so primary material cannot even establish whether "A" in 2024 and "A" in 2025 are the same company Not yet confirmed.

A caution: no trading relationship with Ajinomoto is disclosed

Kinsus uses the term "ABF substrate" repeatedly in its annual report, but the name Ajinomoto appears nowhere in that report or in its investor material. Principal suppliers too are disclosed only by letter. How far the company goes on the record is that its key raw materials are gold (potassium gold cyanide), base materials, transparent film, copper foil and chemicals, and a risk statement that "once a material has been qualified it is unlikely to be changed, so we maintain only two or three suppliers" Sourced. This article therefore does not treat any individual materials maker as a trading relationship Not yet confirmed.

10. Where the company is heading in this field

Anything said here is a forecast, so the facts behind the judgement and the outlook drawn from them are kept apart.

What is established

FactWhat it implies for the back end
2025 revenue up 28.9%, and January to August 2026 up a further 32.1%The recovery in demand has reached this company too
In that same 2025, gross margin fell from 28.4% to 21.1%The added revenue is not all high-margin work. The mix problem remains
The company itself states that low-end ABF and BT are in oversupply"Substrates" covers two markets in opposite conditions
The largest customer went from 10.7% to 19.5% of revenue, 2.3 times in valueThe growth comes from a specific account, and concentration is rising
The Youth plant is designated as the site for high value-added productsThere is an intent to move the centre of gravity up-market
A cash issue of 70 million shares in March 2026, raising the share count by 15.3%Funding is coming from equity as well as debt

Outlook

Not yet confirmed Read plainly, those facts put Kinsus at a genuine participant in AI substrates, but not yet a lead player. It has the technology and the record to place itself alongside Ibiden and Unimicron in high-layer-count ABF, and revenue has accelerated into 2026. But its scale is about 30% of Unimicron's, NT$39.4bn against NT$131.2bn Our calculation, and its margin has not returned to 2022 levels.

Not yet confirmed The pivot is whether it can move the product mix upward and make it stick. If low-end ABF and BT really are in oversupply, as the company says, margins will not recover for as long as it sits there. Whether ramping the Youth plant and growing the largest account delivers that move is the open question. Equally, because competitors are expanding into the upper market at the same time, a scenario where even high-layer-count ABF is in oversupply from 2028 cannot be ruled out. Neither can be settled from primary material.

11. The risks this company carries

What follows is drawn from the risk section of Kinsus's own annual report, narrowed to those that matter in a back-end context Sourced.

RiskSubstanceSupporting figures
Concentrated supply of materialsThe company states that "once a material has been qualified it is unlikely to be changed, so we maintain only two or three suppliers". The key raw materials are gold, base materials, transparent film, copper foil and chemicalsRisks relating to the purchase and sale of products, in the annual report
Raw material pricesShortages of glass cloth and copper foil began to appear in the second half of 2025, and the chairman states that rising copper and gold prices will squeeze revenue growth and gross profit in 2026. The response is new suppliers and price revisionsThe report to shareholders in the 2025 Annual Report
Falling marginRevenue grew, yet gross margin fell to 21.1%, the lowest in five years. Cost of sales rose 41.9%, outpacing the 28.9% rise in revenueGross margin from 28.4% to 21.1% Our calculation
Customer concentrationThe company writes that "IC package substrates are sold to leading IC design companies at home and abroad and have broad applications, so we are free of sales concentration risk", yet the largest customer went from 10.7% to 19.5% in a single yearCustomer disclosure in the annual report Our calculation
Volatility of resultsBetween 2022 and 2023 revenue fell 36.8% and operating profit fell 89.1%The five-year summary in the 2023 Annual Report Our calculation
Currency and interest ratesExports are quoted in U.S. dollars, and long-term borrowings and the main imported inputs are also in U.S. dollars. In 2025 the foreign exchange gain was 0.10% of revenue and interest expense 12.68% of pre-tax profitThe risk assessment in the annual report
A materials engineer's view: what to watch in this company

The most informative thing to follow at Kinsus is monthly revenue paired with gross margin. Revenue is published every month, and the quarterly consolidated statements give the margin. A stretch where revenue is rising while gross margin falls is a stretch spent chasing volume in lower-tier products. That is exactly what 2025 was. When the margin starts rising instead, it is the signal that high value-added work from the Youth plant is beginning to bite.

On the materials side, the items the company itself names, base materials with ultra-low expansion, high Tg and high modulus, vias of 30 microns or less, contact pitch under 30 microns, are the direction of travel for the specification Sourced. And because it runs BT alongside ABF rather than ABF alone, two families of material are being evaluated inside the same company, which matters to anyone proposing into it.

12. Glossary

IC package substrate
The small multilayer board that carries a semiconductor die and connects it to the circuit board outside. The annual report calls it a raw material, or carrier component, for the packaging industry.
FCBGA / ABF substrate
A substrate where the die is flipped and bonded directly to the board. Because the interlayer dielectric is an Ajinomoto Build-up Film class material, the industry calls it an ABF substrate. For AI GPUs and server CPUs.
BT substrate
A substrate using bismaleimide triazine resin. For relatively small dies such as smartphone processors and memory.
PBGA
Plastic Ball Grid Array. A package with solder balls arrayed on the underside of a resin board, usually with the die wire-bonded to the board.
Coreless substrate
A thin substrate built without the rigid core at the centre of the board. Thinner, but harder to keep flat.
Tg (glass transition temperature)
The temperature at which a resin goes from rigid to soft. The higher it is, the better the material survives hot assembly steps.
CPO
Co-Packaged Optics. Putting the optical transmit and receive components in the same package as the chip, to cut the power and latency of the interconnect. Kinsus names it as a development item.
MOPS
The Market Observation Post System, Taiwan's statutory disclosure platform, where listed companies file annual reports, financial statements and the execution status of financing plans. Kinsus's annual report names it as the reference.
Concept diagram showing two package substrates of equal size side by side, contrasting their layer structures in cross-section (AI-generated concept image)AI-generated concept
Fig. 4 Concept diagram contrasting the structure of an ABF substrate and a BT substrate. This is an AI-generated concept image and is not a photograph of an actual product cross-section.

13. References

  1. KINSUS INTERCONNECT TECHNOLOGY CORP. 2025 Annual Report (English summary edition, issued 22 April 2026). Report to shareholders (2025 consolidated revenue and net profit, material shortages and price rises), business description and revenue by division, current and planned products, the market share section, revenue by sales region, principal customers and suppliers (disclosed by letter), workforce composition, financial position and results, cash flow, capital expenditure, risk assessment, the history of share capital and major shareholders, and the plant list. The report states that the English edition is a summary translation and that the local-language edition is the official one.kinsus.com.tw/upload/media/ir/.../2025 Annual Report.pdf
  2. KINSUS INTERCONNECT TECHNOLOGY CORP. 2023 Annual Report (English summary edition). The condensed consolidated balance sheets and statements of comprehensive income for the past five fiscal years, covering revenue, gross profit, operating profit, net profit and earnings per share for 2019 to 2023.kinsus.com.tw/upload/media/ir/.../2023 Annual Report.pdf
  3. KINSUS INTERCONNECT TECHNOLOGY CORP. Monthly revenue announcements (official site). Monthly consolidated revenue and year-on-year change for 2024, 2025 and January to August 2026.https://www.kinsus.com.tw/en/annual/monthly_revenue
  4. KINSUS INTERCONNECT TECHNOLOGY CORP. Investor presentation (February 2026). The position of the substrate house in the semiconductor supply chain, corporate basics (founded September 2000, listed November 2004, share capital of NT$4.569bn, translated by the company as US$145m), the site list, the hierarchy of IC mounting, and explanations of advanced packaging and co-packaged optics.kinsus.com.tw/upload/media/ir/Investor/2026-02-investor-presentation.pdf
  5. KINSUS INTERCONNECT TECHNOLOGY CORP. Global Locations (official site). The addresses of the four plants in Taiwan, the two companies in Suzhou, China, and the subsidiary in Santa Clara.https://www.kinsus.com.tw/en/html/global_locations/index
  6. Taiwan Stock Exchange Market Observation Post System (MOPS). The platform Kinsus's annual report names as the reference for its statutory disclosures and for the execution status of its financing plan.https://mops.twse.com.tw/
  7. KINSUS INTERCONNECT TECHNOLOGY CORP. Official website, used to check the name and the brand mark.https://www.kinsus.com.tw/en

14. Claim-to-source audit

Claim in the articleCategorySource
Legal name, head office, listing venue (Taiwan Stock Exchange 3189), 526,925,960 shares issuedSourcedReference 1kinsus.com.tw/.../2025 Annual Report.pdf
Founded September 2000, listed 1 November 2004, share capital of NT$4.569bn (translated by the company as US$145m)SourcedReferences 4 and 1kinsus.com.tw/.../2026-02-investor-presentation.pdf
2025 revenue of 39,351,096 NT$ thousand (+28.87%), net profit of 2,717,328 NT$ thousand (+104.15%), parent-only revenue of 32,349,689 NT$ thousandSourcedReference 1kinsus.com.tw/.../2025 Annual Report.pdf
Revenue, gross profit, operating profit and net profit for 2021 to 2023SourcedReference 2, the condensed five-year statement of comprehensive incomekinsus.com.tw/.../2023 Annual Report.pdf
Five years of gross margin (29.5%, 37.0%, 25.2%, 28.4% and 21.1%), the 36.8% revenue decline in 2023 and the 89.1% fall in operating profitOur calculationDerived from the amounts in references 1 and 2kinsus.com.tw/.../2023 Annual Report.pdf
Cumulative revenue of 32,959,684 NT$ thousand for January to August 2026, and 4,809,631 NT$ thousand in August alone (+40.58% year on year)SourcedReference 3kinsus.com.tw/en/annual/monthly_revenue
January to August 2026 being 32.1% above the same months of 2025Our calculationOur own sum and comparison of the monthly figures in reference 3kinsus.com.tw/en/annual/monthly_revenue
Revenue by division (substrates 32,311,845 NT$ thousand and 82.11%, optics 7,039,251 NT$ thousand and 17.89%)SourcedReference 1kinsus.com.tw/.../2025 Annual Report.pdf
Revenue by sales region (Taiwan 25.63%, United States 24.74%, China 16.48%, Japan 12.63%, other 20.52%)SourcedReference 1kinsus.com.tw/.../2025 Annual Report.pdf
The list of current products (PBGA, MCM-BGA, FCBGA, FCCSP, coreless, embedded component, COF and others) and the products plannedSourcedReference 1, business descriptionkinsus.com.tw/.../2025 Annual Report.pdf
The statements that high-layer-count ABF substrates for servers are concentrating in companies such as Ibiden, UMTC and Kinsus, and that low-end ABF and BT are in oversupplySourcedReference 1, the market share sectionkinsus.com.tw/.../2025 Annual Report.pdf
The statement that the company can provide a one-stop solution for both ABF and BT substratesSourcedReference 1, competitive strengthskinsus.com.tw/.../2025 Annual Report.pdf
The supply chain diagram (IC design, foundry, substrate house, OSAT) and the description of the substrate as a raw material or carrier component for the packaging industrySourcedReferences 4 and 1kinsus.com.tw/.../2026-02-investor-presentation.pdf
The site list (four plants in Taiwan, two companies in Suzhou, the Santa Clara subsidiary and PegaVision) and the Youth plant being acquired in 2021 as the site for high value-added productsSourcedReferences 5, 1 and 4kinsus.com.tw/en/html/global_locations/index
6,735 employees with the split by role and education, and an average age of 35SourcedReference 1kinsus.com.tw/.../2025 Annual Report.pdf
Property, plant and equipment of 41,936,711 NT$ thousand, prepayments for equipment of 8,000,746 NT$ thousand, investing cash flow of minus 7,868,506 NT$ thousand, and expected 2026 R&D spend of 1,914,000 NT$ thousandSourcedReference 1kinsus.com.tw/.../2025 Annual Report.pdf
Investing cash flow being equal to 20.0% of revenueOur calculationDerived from the amounts in reference 1kinsus.com.tw/.../2025 Annual Report.pdf
The cash issue of 70 million shares in March 2026, with paid-in capital going from NT$4,569.26m to NT$5,269.26mSourcedReference 1, the history of share capitalkinsus.com.tw/.../2025 Annual Report.pdf
The share count rising 15.3%Our calculationDerived from the share counts in reference 1kinsus.com.tw/.../2025 Annual Report.pdf
The holdings and stakes of the three largest shareholders, Asustek and Asuspower being wholly owned by Pegatron Corp., and the chairman's role at PegatronSourcedReference 1kinsus.com.tw/.../2025 Annual Report.pdf
The combined 36.80% held by the threeOur calculationOur own addition of the stakes in reference 1kinsus.com.tw/.../2025 Annual Report.pdf
The amounts and shares by customer and by supplier, disclosed by letterSourcedReference 1, principal customers and supplierskinsus.com.tw/.../2025 Annual Report.pdf
The largest customer A growing 2.3 times in value, and the top three going from 26.3% to 34.0%Our calculationDerived from the amounts disclosed in reference 1kinsus.com.tw/.../2025 Annual Report.pdf
The risks (two or three suppliers per material, shortages of glass cloth and copper foil, rising copper and gold prices, currency and interest rates, and the company's view on customer concentration)SourcedReference 1, the report to shareholders and the risk assessmentkinsus.com.tw/.../2025 Annual Report.pdf
The comparison of scale between Kinsus and Unimicron (NT$39.4bn against NT$131.2bn, about 30%)Our calculationOur own comparison of the revenue in reference 1 with Unimicron's published revenue of 131,241 NT$m. Both are in NT$, so no currency conversion is involvedkinsus.com.tw/.../2025 Annual Report.pdf
IC substrate market size, market share and the market growth rateNot yet confirmedThe annual report states them, but attributes them to estimates by the research firm Prismark, so this article does not adopt them
The identities of customers A and B and of the principal suppliers, and whether a letter means the same company from one year to the nextNot yet confirmedTaiwanese annual reports disclose these by letter, and this article does not attempt to identify them
Trading relationships with individual materials makers, such as the supplier of Ajinomoto Build-up FilmNot yet confirmedNo company name appears in Kinsus's own primary material, so this article does not treat any as a supplier relationship
The investment amount for the Youth plant, the multiple by which the expansion raises capacity, and the use of the March 2026 proceedsNot yet confirmedNone of it appears in the annual report itself, and this article offers no estimate
What the optics business (PegaVision) actually makesNot yet confirmedKinsus's own primary material says only "Division of Optics", so this article asserts nothing further
The parent of Asus Investment Co., Ltd.Not yet confirmedIt is absent from the institutional shareholder table in the annual report, so this article asserts nothing
The outlook in section 10Not yet confirmedAn interpretation by this article, drawn from the six items in the facts table

Last updated 21 September 2026 / Troy Technical
Every figure in this article comes from the annual reports, monthly revenue announcements and investor presentations published by KINSUS INTERCONNECT TECHNOLOGY CORP. No research-firm estimates or press-based figures have been used. Amounts are in New Taiwan dollars (NT$) with no currency conversion applied, except for the U.S. dollar translation of share capital, which is the company's own published figure.

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