Chaozhou Three-Circle Group: The Ceramic Empire Powering Global Tech

I. Introduction & Episode Roadmap

On July 9, 2026, Chaozhou Three-Circle Group listed on the Hong Kong Stock Exchange (香港联合交易所). Priced at HK$100.30 per H-share, the global offering of 71.36 million shares raised roughly HK$7.16 billion in gross proceeds, backed by a retail tranche oversubscribed 327.7 times.¹ The cornerstone investor lineup featured Temasek, Goldman Sachs Asset Management, J.P. Morgan Asset Management, IDG, CPE, and the investment arms of Alibaba (阿里巴巴) and Tencent (腾讯) — eighteen cornerstones committing approximately US$455 million between them.¹ By the close of its trading debut, the company's combined market capitalization exceeded HK$204 billion.²

The company, formally named Chaozhou Three-Circle (Group) Co., Ltd. (潮州三环(集团)股份有限公司), trades under ticker 300408.SZ in Shenzhen and 6951.HK in Hong Kong. It produces components critical to global technology infrastructure that remain largely invisible to end users. A ceramic ferrule, for instance, is a white cylinder roughly two millimeters in diameter with a central bore that holds optical fibers in precise alignment inside a connector, enabling laser signals to pass without loss; Three-Circle manufactures more than 70 percent of the world's supply.² Alumina ceramic substrates form the base rectangles for printed chip resistors, where the company supplies over half of global demand.² In solid-oxide fuel cell electrolyte membranes, a specialized power-equipment component, Three-Circle commands a global market share exceeding 85 percent.²

The paradox at the centre of the story

The analytical tension in Three-Circle's business model lies in the nature of advanced electronic ceramics. Sold by the billion as commodity-adjacent components priced at fractions of a cent, the sector nevertheless remains one of global manufacturing's most durable oligopolies. For four decades, Japanese manufacturers — including Murata Manufacturing (株式会社村田製作所), Kyocera (京セラ株式会社), Taiyo Yuden (太陽誘電株式会社), and TDK (TDK株式会社) — have dominated the industry, later joined by South Korea's Samsung Electro-Mechanics (삼성전기). In multilayer ceramic chip capacitors (MLCCs), the largest electronic ceramic product category, these five suppliers control roughly three-quarters of the global market, with Murata alone holding nearly 32 percent.³

By contrast, Three-Circle's global MLCC market share stood at approximately 3 percent at the time of its Hong Kong prospectus disclosures.³ This figure frames the company's strategic position: while it holds near-monopoly positions in specialized niches, it remains a single-digit challenger in the industry's largest addressable market, competing against incumbents with decades of accumulated process expertise.

How a former state-owned radio parts workshop in Chaozhou (潮州市) — a city in eastern Guangdong (广东省) historically known for tea culture, wood carving, and merchant networks rather than advanced materials — captured the global optical ferrule market and launched a challenge against Murata is the central narrative of its development. Equally important is whether its capital-intensive expansion into MLCCs can deliver comparable economic returns.

The roadmap

Five distinct themes define this corporate history.

First is ownership. A loss-making state factory was converted into a joint-stock enterprise in 1992 under shop-floor engineer Zhang Wanzhen (张万镇), who later served in local government before returning as controlling shareholder — a structure that established strict cost discipline while creating governance questions for public investors.

Second is the pivot from commodity to precision: how mastering raw material powder synthesis rather than relying solely on equipment turned a low-margin substrate maker into a dominant global supplier of optical ferrules.

Third is a strategic retreat: the mid-2010s ceramic smartphone trend, during which Three-Circle briefly supplied premium ceramic phone enclosures before exiting the segment when adoption stalled.

Fourth is the MLCC expansion — billions of renminbi in capital expenditure directed at a market where the company remains a minor participant and long-term investment returns remain unproven.

Fifth is the AI demand surge: a 2026 environment in which rising demand for optical modules collided with a structural shortage of high-capacitance MLCCs, driving first-half net profit guidance to ¥1.79–2.04 billion, an increase of 45% to 65% year on year.⁴

Following that disclosure, the company's shares rose 12 percent in a single trading session on July 21, 2026.⁵ The core analytical question is how much of this performance reflects a durable structural shift versus a temporary cyclical tailwind.

The narrative begins in a small local temple, with a group of basket weavers.

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II. Origins in Chaozhou: From SOE Radio Components to MBO Survival (1970–1999)

The physical setting reveals much about the company's trajectory. In 1970, the site that became 潮州市无线电元件一厂 Chaozhou No. 1 Wireless Component Factory was housed inside a small local temple in Chaozhou. Its initial workforce was drawn substantially from a bamboo-weaving cooperative — craftspeople who spent their early careers shaping baskets before being reassigned to shape electronic ceramics.⁶ While the origin details sound like local folklore, they capture an essential operational truth. Chaozhou possessed no established electronics ecosystem; instead, it offered a centuries-old ceramics heritage of kilns, clay, and workers accustomed to handling raw materials that deform unpredictably under heat.

The factory's founding mandate was unglamorous: producing basic ceramic substrates and resistors for domestic radios at the lowest tier of China's industrial value chain.⁷ For two decades, the plant operated strictly within those bounds. By the standards of the planned economy, it was neither a standout success nor an outright failure — it operated as a 国营 state-run unit burdened with payroll responsibilities, civic housing obligations, and a soft budget constraint.

The man who came in the door in 1973

张万镇 Zhang Wanzhen, born in Chaozhou in 1949, entered the state-owned radio ceramics factory in 1973 as a line worker.⁸ Arriving without a degree in materials engineering or foreign backing, Zhang focused on two technical operational levers: ceramic powder formulation and firing process control. These two variables determine whether an electronic ceramics producer achieves a durable manufacturing edge or remains a low-margin component assembler. Zhang advanced to workshop director and eventually factory director.⁸

In 1992, 邓小平 Deng Xiaoping's 南巡 Southern Tour accelerated market reforms across China, prompting state-owned enterprises in Guangdong to convert into shareholding entities. Zhang directed the factory's restructuring into a joint-stock enterprise, establishing the corporate structure and name the company retains today.⁸ The transaction was not a Western-style leveraged buyout involving debt syndicates, private equity sponsors, or competitive bidding. Instead, it followed China's standard 股份制改造 shareholding-system reform, under which state assets were appraised, converted to equity, and distributed among the municipality, management, and shop-floor workers. Over the next three decades, through successive share transfers, capital additions, and equity consolidations, operational control and ultimate economic ownership shifted toward internal management.

The detour into government

In 1998, Zhang was appointed deputy mayor of Chaozhou, overseeing municipal communications and transport. He served in local government for nine years before resigning from public office in 2007 to return to Three-Circle as its controlling shareholder and executive leader.⁸

This nine-year period, during which the eventual controlling owner served as a senior municipal official in the company's home city, represents a governance record subject to distinct interpretations. A favorable interpretation holds that professional managers ran daily operations during his tenure and that Zhang's return formalized leadership he had previously established. A more critical perspective views the intersection of local administrative authority and state-asset ownership restructuring as a sequence requiring rigorous investor disclosure. Three-Circle's regulatory filings present the public service and corporate ownership evolution as separate matters, and no regulatory non-compliance has been cited. However, the resulting ownership concentration is substantial: as of its June 2026 Hong Kong listing prospectus, Zhang, then 76 years old, controlled approximately 36.47% of the company through a 2.80% direct equity holding and a 33.67% stake held via 潮州三江投资 Chaozhou Sanjiang Investment.³ His holdings have consistently ranked him as the wealthiest individual in Chaozhou on the Hurun China Rich List.³

Why ceramics is hard, explained without the chemistry

Understanding the company's eventual market position requires examining why electronic ceramics resist standard industrial commoditization.

The manufacturing process begins with high-purity inorganic powder — typically zirconia, alumina, or barium titanate. The powder is blended with chemical binders and solvents to form a liquid slurry with the consistency of dense paint. This slurry is tape-cast into a thin, continuous ceramic sheet — known as a green tape — that can measure less than one micron thick, or roughly one-hundredth the width of a human hair. Conductive metal electrodes are screen-printed onto the tape, after which hundreds or thousands of layers are stacked, pressed, diced into discrete components, and fired in kilns at temperatures exceeding 1,300°C.

During thermal sintering, the ceramic component undergoes volumetric shrinkage often exceeding twenty percent. The core engineering challenge lies in ensuring uniform shrinkage across all dimensions. Particle size variations in the raw powder cause localized density shifts that warp the final structure. Non-uniform binder burnout leads to layer delamination, while a thermal gradient of even a few degrees across a kiln chamber causes structural cracking. The finished ceramic component must nevertheless meet precise dimensional tolerances measured in sub-microns.

Consequently, purchasing turnkey production machinery does not confer immediate manufacturing competitiveness. While specialized capital equipment can be acquired on the commercial market, the underlying process know-how — particle size distribution control, binder formulations, thermal profile ramp rates, and accumulated yield optimization data — cannot be bought off the shelf. It resides within engineering teams and plant operational logs, requiring years of empirical iteration to master.

The capital allocation choice that set the trajectory

During the 1990s, most expanding Chinese manufacturers imported complete, turnkey production lines from foreign vendors and competed primarily on lower labor costs. Three-Circle pursued a different capital allocation strategy: importing only unreplicable core tooling while designing and fabricating auxiliary equipment — including kilns, grinding units, and specialized processing tools — in-house. By 2005, the company formalised this capability into a dedicated internal division, manufacturing its own specialized production equipment.⁷

For a capital-constrained enterprise, this strategy generated compounding operational benefits. By designing its kilns internally, Three-Circle maintained complete visibility into thermal dynamics, allowing engineers to modify kiln configurations rapidly when introducing new product lines. Equipment self-sufficiency served less as a direct cost-reduction tool and more as a mechanism to accelerate its learning curve. While competitors relying on commercial equipment submitted modification requests to foreign machinery vendors, Three-Circle adapted its proprietary equipment directly on the factory floor.

This dual focus on powder formulation control and equipment engineering established the foundation for the company's subsequent product expansions. While market durability in advanced components remains to be proven in its newer business lines as of 2026, this technical foundation enabled Three-Circle to launch competitive production of alumina substrates for integrated circuit resistors in 1996.⁷ Within five years, that same manufacturing model positioned the company to enter a far broader global market.

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III. The First Breakthrough: Conquering Fibre Optic Ferrules & Resistor Substrates (2000–2013)

At the turn of the millennium, global telecommunications providers began laying vast optical fiber networks. The infrastructure expansion—a capital expenditure boom that crashed in 2001 before resuming through China's domestic network build-out—required immense quantities of a small, precision-engineered component.

Whenever two optical fibers connect to each other or to a transceiver, their glass cores must align with sub-micron accuracy. For a single-mode fiber with a core diameter of roughly nine microns, a misalignment of even half a micron causes severe signal loss. The component ensuring this alignment is a zirconia ceramic ferrule: a tiny cylinder with a microscopic center bore into which the optical fiber is glued, requiring exact concentricity with the outer cylinder wall.

Through most of the 1990s, Japanese manufacturers such as Kyocera and Adamant dominated ferrule production and priced the component as a high-margin line item in every optical connector bill of materials.

How the monopoly changed hands

Three-Circle entered the segment around 2001 as part of a deliberate expansion into optical communications components.⁷ The underlying technical challenge matched the capabilities the company had cultivated over the preceding three decades: synthesizing zirconia powder with sufficient consistency that molded parts shrank predictably during sintering, then maintaining precise bore concentricity through high-speed injection molding and grinding.

The structural shift that followed was driven less by novel technology than by aggressive cost reduction. Having mastered the manufacturing process, Three-Circle lowered unit production costs and reduced market prices accordingly. Industry accounts from the period record international ferrule prices dropping by more than half over the following decade as Chinese manufacturing capacity scaled. Incumbent Japanese suppliers faced a classic dilemma: lower prices to defend market share and ruin business unit economics, or concede high-volume market share to retreat into higher-margin specialty niches. Most incumbents chose to retreat.

By the time market share stabilized, Three-Circle controlled more than 70 percent of the global market for optical fiber ceramic ferrules and sleeves—a dominant position it maintained through its July 2026 Hong Kong listing.² Its monthly ferrule production capacity expanded to approximately 300 million units.⁹

This competitive advantage relies on a specific structural moat. It is not built on broad patent portfolios or brand equity, but on a cost position compounded by manufacturing scale: the largest producer amortizes fixed costs across the highest unit volumes, funds continuous process improvements, and sets prices that deter prospective competitors from entering. Because the global addressable market for ferrules remains relatively modest in absolute dollar terms—totaling several hundred million dollars annually—it offers little incentive for major entrants to wage an expensive market-share battle. A dominant position in a small, capital-efficient niche represents a remarkably durable commercial enterprise.

The other cash machine

Concurrently, Three-Circle scaled the business line it launched in 1996: high-purity alumina ceramic substrates for chip resistors.⁷ Printed circuit boards across consumer electronics and automotive applications rely on these base substrates for surface-mount resistors, which Three-Circle supplied to major global passive-component manufacturers, including Taiwan's Yageo (國巨) and Walsin Technology (華新科技).

The operational economics mirrored the ferrule division: massive volume, low unit pricing, and a cost advantage derived from efficient raw material processing rather than proprietary component design. By 2026, Three-Circle's share of the global alumina ceramic substrate market exceeded 50 percent.²

What the cash bought

The cash generated by these two mature businesses reshaped the company's financial profile over the next two decades. Commanding near-monopoly market positions in two mature niches, both generating gross margins well above passive-component industry averages, Three-Circle produced excess operating cash flow beyond the reinvestment needs of those relatively slow-growing end markets.

Three-Circle's consolidated gross margin has consistently hovered in the low-to-mid 40% range—reaching 42.14% in 2025, roughly 14 percentage points above the domestic industry average.¹⁰ Annual operating cash flow reached ¥2.88 billion in 2025.³ Since its December 2014 listing on the Shenzhen Stock Exchange, the company has distributed approximately ¥4.80 billion in cumulative cash dividends, maintaining a dividend payout ratio above 30% of annual net profit.¹¹

This reliable cash generation provided the balance sheet foundation for Three-Circle's subsequent strategic pivot: using a high-margin, niche monopoly to fund an expansion into the far larger, highly competitive, and capital-intensive MLCC market. Whether this reallocation of capital represented disciplined strategic reinvestment or long-term value erosion depended on the returns generated by that second venture—a question that would remain unanswered for years.

Before confronting the competitive realities of MLCC manufacturing, however, the company pursued a temporary detour into consumer electronics that briefly appeared to redefine its growth trajectory.

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IV. The SZSE IPO & The Ceramic Smartphone Mirage (2014–2019)

Three-Circle listed on the ChiNext board of the Shenzhen Stock Exchange (深圳证券交易所) on December 3, 2014, raising roughly US$216 million.⁷ For a company that had never taken outside equity capital and generated strong free cash flow from its two niche monopolies, the initial public offering was less about funding immediate survival than establishing strategic optionality — creating a liquid equity currency, raising its corporate profile, and strengthening its balance sheet to target larger markets. The proceeds funded capacity expansion in ceramic packaging bases for crystal oscillators and surface-mount devices, a segment Three-Circle entered in 2008 as part of its expansion into integrated circuit packaging materials.⁷

Then, a brief period of consumer electronics enthusiasm opened a far higher-profile growth opportunity.

The most beautiful phone nobody could build

In October 2016, Xiaomi (小米) introduced the Mi MIX, a concept smartphone featuring a near-bezel-less display, a ceramic frame, and a ceramic rear casing. Designed by Philippe Starck, the device temporarily positioned advanced ceramics as consumer electronics' most discussed material.

The underlying strategic logic appeared sound. Aluminium unibody designs faced signal attenuation constraints as device antenna counts increased, requiring visible plastic antenna bands. Glass solved radio signal transmission issues but offered lower impact resistance. Ceramic was radio-transparent, harder than hardened steel, and offered a distinct tactile density.

However, the manufacturing realities proved formidable. Industry reporting from the launch period indicated that producing the Mi MIX ceramic shell required more than twenty separate processing steps. A single kiln load of 5,000 components required seven days of sintering at 1,500°C, yielding a usable output rate of roughly five percent.¹² Out of every hundred ceramic parts fired in the furnace, only about five met commercial specifications. Following sintering, each shell required hours of diamond CNC machining and polishing to correct dimensional variations caused by thermal shrinkage.

As the primary supplier in Xiaomi's ceramic casing supply chain, Three-Circle focused on manufacturing yield improvements. Across the Mi 6 and Mi MIX 2 production runs in 2017, the company raised its first-pass yield rates, earning Xiaomi's top supplier recognition that year.[^13] By late 2017, Three-Circle was building additional ceramic back-cover capacity to serve expected adoption by competing smartphone brands.

The customers never came

Broader industry adoption failed to materialise because competing smartphone manufacturers selected alternative materials. Apple adopted 3D glass for the iPhone 8 and iPhone X, later transitioning toward titanium and glass-ceramic composites. Samsung retained glass back panels, and mainstream Android manufacturers followed suit. Xiaomi itself subsequently restricted ceramic casings to low-volume halo models rather than mass-market product lines.

The choice was driven by cost and physical constraints rather than aesthetics. Even with improved manufacturing yields, a ceramic back panel cost several times more than a glass counterpart. Ceramic also exhibits lower thermal conductivity than metal, creating thermal management challenges as mobile processors grew hotter. Furthermore, ceramic's higher material density added noticeable weight to handheld devices at a time when lightness was a primary marketing feature.

What management did next is the actual story

Confronted with a business segment that had absorbed significant capital expenditure, engineering resources, and factory footprint without broad market adoption, Three-Circle halted further investment in consumer ceramic casings, absorbed the margin impact, and reallocated its engineering organisation toward multilayer ceramic chip capacitors (MLCCs).

This rapid strategic pivot highlights both operational discipline and limits in market forecasting. Hardware manufacturers frequently struggle to abandon high-profile initiatives backed by executive sponsorship and public visibility. Three-Circle exited the segment quickly, and the tape-casting, layer-stacking, and co-firing expertise developed for ceramic backplates proved directly applicable to MLCC manufacturing. Rather than writing off the accumulated operational knowledge, the company redeployed it.

At the same time, Three-Circle provided no detailed accounting of the financial losses incurred by the ceramic casing venture, and its core strategic assumption — that ceramic would become a standard material for premium smartphones — proved incorrect. The episode suggested that while Three-Circle possessed strong process execution capabilities on the factory floor, its ability to forecast end-market demand adoption was less developed.

The bargain in the wreckage

A secondary transaction from this period gained commercial relevance years later. Three-Circle had engaged in solid-oxide fuel cell (SOFC) development since 2004, manufacturing the central electrolyte membranes for SOFC stacks and mass-producing single cells by 2012.¹³ However, the company lacked system-level engineering capabilities, specifically stack architecture and balance-of-plant design necessary to assemble complete power generation units.

That system expertise resided at Ceramic Fuel Cells Limited, an Australian-listed developer with manufacturing operations in Germany that entered insolvency. In 2015, Three-Circle acquired the distressed business, securing its stack technology and small-scale SOFC system designs.¹³

The acquisition reflected a recurring corporate pattern: rather than pursuing large-scale corporate mergers, Three-Circle acquired distressed niche technologies at low valuations and integrated them into its existing ceramics manufacturing platform. While the SOFC asset required nearly a decade to reach commercial relevance, its utility eventually emerged as power-intensive data centres sought alternative electricity generation sources.

Nevertheless, the primary strategic focus of the subsequent decade remained distinct from fuel cells. Three-Circle directed its main capital allocation toward entering the global passive component market's most competitive segment: MLCCs.

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V. The MLCC Domestic Substitution War: Taking on Murata & Samsung (2020–2023)

A modern smartphone contains roughly one thousand multilayer ceramic chip capacitors (MLCCs), while a high-end electric vehicle carries ten thousand or more. Often called the "rice" of the electronics industry due to their ubiquity, MLCCs include standard sizes as small as the 01005 format — measuring 0.4 by 0.2 millimeters, roughly the size of a grain of fine sand.

Each MLCC consists of alternating layers of ceramic dielectric and metal electrode, pressed together and co-fired into a monolith. Component performance rests on two variables: dielectric layer thinness and the number of layers stacked without delamination. Reducing layer thickness from two microns to sub-micron levels roughly doubles capacitance within the same volume, while increasing layer count from 400 to 1,000 doubles it again. However, thinner layers exacerbate co-firing complexity because ceramic and metal shrink at different rates during sintering, leaving minimal tolerance for thermal mismatch.

Murata has advanced this manufacturing process since the 1970s. Entering this market meant Three-Circle was taking on well-entrenched incumbents.

The catalyst was political before it was technical

The proximate trigger was geopolitical. As U.S. technology restrictions on Huawei (华为) tightened from 2019 onward, Chinese original equipment manufacturers across consumer electronics, telecommunications, and automotive sectors audited their supply chains to reduce reliance on foreign single-source vendors. Domestic substitution (国产替代) shifted from a policy slogan into a commercial procurement mandate, opening design-in slots for domestic suppliers that had previously gone almost exclusively to Japanese incumbents.

For a component category in which Chinese manufacturers collectively held roughly ten percent of global market share, these supply chain adjustments created the largest demand-side opening in decades.

The capex blitz

Three-Circle responded by raising equity capital to fund aggressive capacity expansion.

In March 2020, the company announced a private placement, completed that November, raising ¥2.175 billion — of which ¥1.895 billion was allocated to a high-quality MLCC project for 5G communications designed to add 240 billion units of annual capacity.¹⁴ In May 2021, it proposed a second placement that ultimately raised ¥3.9 billion, with ¥3.75 billion directed toward high-capacitance MLCC expansion adding another 300 billion units per year.¹⁴¹⁵

Together, these two expansions targeted 540 billion additional MLCC units annually, equivalent to approximately 12.3% of total global MLCC demand in 2020.¹⁵

Adding annual capacity equal to more than a tenth of worldwide demand while holding a three percent market share represented a significant capital allocation risk. The investment assumed that domestic substitution demand would materialize and that customer qualification would proceed smoothly. Furthermore, passive-component manufacturing has historically experienced periods where concurrent industry capacity additions depressed market pricing.

What they actually built

Process execution followed the capital deployment. By 2025, Three-Circle had achieved mass production across the standard size spectrum — from 01005 up to the 2220 format — and introduced its M3L and "S" series lines for higher-specification applications.¹⁰ Its automotive-grade offerings expanded from 0201 to 2220 formats with capacitance ranging from 0.1 picofarads to 47 microfarads, targeting electric vehicle power systems, motor drive inverters, and infotainment units.¹¹

Automotive qualification carries stricter requirements than consumer electronics applications. While a failed capacitor in a smartphone degrades device performance, a failure in an electric vehicle traction inverter can trigger a safety recall. Automotive qualification requires multi-year testing and rigorous facility audits. Once secured, design wins tend to persist across a vehicle platform's seven-to-ten-year lifecycle, establishing a switching-cost advantage for qualified suppliers.

The financial reality of the period

Financial returns lagged the initial capital outlay. Between 2020 and 2023, heavy capital expenditure coincided with a downturn in consumer electronics demand during 2022 and 2023, pressing down MLCC market prices. In 2023, Three-Circle recorded revenue of approximately ¥5.68 billion and net profit of ¥1.58 billion under the accounting standards presented in its Hong Kong prospectus — maintaining absolute profitability, though returns on deployed capital remained muted.³

As end-market demand recovered, performance accelerated. Under Hong Kong prospectus reporting standards, revenue expanded to roughly ¥7.27 billion in 2024 and ¥8.87 billion in 2025, while net profit grew from ¥1.58 billion to ¥2.19 billion and reached ¥2.62 billion.³ Under domestic A-share reporting standards, 2025 revenue rose 22.13% year over year to ¥9.007 billion, with net profit attributable to shareholders increasing 19.54% to ¥2.618 billion.¹⁰

Revenue composition highlights the shift in growth drivers. In 2025, the electronic components segment — consisting predominantly of MLCCs — generated ¥3.308 billion, representing a 43.95% year-over-year increase and raising its contribution to total revenue from 31.16% to 36.73%.¹⁶ Meanwhile, the communication devices segment (comprising optical ferrules and packaging bases) grew 12.50% to ¥2.594 billion, electronic and ceramic materials increased 16.82% to ¥1.959 billion, and equipment components grew 12.09% to ¥602 million.¹⁶

By 2025, MLCCs had become Three-Circle's largest and fastest-growing product division, establishing the expansion as a key revenue contributor.

The uncomfortable footnote

Two factors disclosed in regulatory filings provide additional context on earnings quality during this expansion.

First, non-operating income supported reported profits. Government grants received in 2023, 2024, and 2025 totaled approximately ¥300 million, ¥241 million, and ¥360 million respectively — amounting to roughly ¥900 million over the three-year period.¹⁷ Combined with interest income, non-operating sources accounted for 30.00%, 20.28%, and 21.27% of net profit across those respective years, indicating that non-commercial items contributed noticeably to bottom-line results.¹⁷

Second, working capital requirements expanded alongside sales growth. Accounts receivable increased from ¥1.627 billion at the end of 2023 to ¥1.872 billion in 2024, ¥2.159 billion in 2025, and ¥2.370 billion by the first quarter of 2026.³ Inventory reached ¥2.610 billion at the end of Q1 2026, up ¥218 million from the beginning of the year, while first-quarter operating cash flow declined 35.41% year over year — a change management attributed to raw material procurement for ongoing MLCC production scaling.³ Regulatory risk factors highlight that potential customer credit deterioration could lead to further impairment losses.³

While extending payment terms can accompany volume growth with newly onboarded commercial clients, faster growth in receivables relative to revenue warrants continued monitoring.

Then, in 2026, the broader industry environment shifted once again.

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VI. AI Hardware, Optical Packaging, & SOFC Optionality (2024–2026+)

The MLCC industry spent most of 2024 and 2025 in a familiar equilibrium: steady automotive demand, sluggish consumer electronics adoption, and expanding domestic Chinese supply. That dynamic shifted when the scale of global artificial intelligence data center construction reshaped market demand.

From a passive-component perspective, an AI server differs fundamentally from a conventional server. The power delivery network for an accelerator rack requires massive decoupling capacitance positioned adjacent to the processor, driving demand for high-capacitance MLCCs in compact packages — the most technically demanding segment in the component category. By 2026, MLCCs had climbed into the top three bill-of-materials cost lines for AI server builds.¹⁸

The structural demand surge produced a supply shortage. Through the first half of 2026, broad spot MLCC prices increased 15% to 20%, while high-capacitance components for AI servers rose 50% to 60%, with scarce specifications doubling in price.¹⁸ Delivery lead times for high-capacity AI MLCCs expanded from eight to twelve weeks to between sixteen and twenty-four weeks. Key incumbents — Murata, Taiyo Yuden, and Samsung Electro-Mechanics — raised prices, operated high-end production lines above 90% utilization, and launched capacity expansions, with Murata committing ¥250 billion in fiscal 2026 capital expenditure, including ¥80 billion earmarked specifically for server-grade MLCC capacity.¹⁸

Simultaneous price increases and capital additions by major incumbents indicated that near-term demand significantly outstripped global supply. Historically, aggressive industry-wide capacity additions set the stage for subsequent downcycles, though near-term supply constraints persisted through mid-2026.

The optical business woke up at the same time

Concurrently, the expansion of AI infrastructure accelerated demand in optical communications. Connecting accelerator clusters within data centers required vast deployments of high-speed optical transceivers, with 800-gigabit modules shipping in volume and 1.6-terabit modules entering commercial deployment during 2026. Each module incorporates ceramic ferrules at its connector interfaces and ceramic packaging bases to enclose critical laser and timing components.

The ceramic packaging base — 陶瓷封装基座 or PKG — is a precision housing designed to enclose quartz crystal oscillators or laser dies. These internal components require hermetic sealing and a coefficient of thermal expansion matching the enclosed semiconductor or quartz material. Thermal expansion mismatches cause mechanical stress, leading to frequency drift or optical signal degradation. Unlike plastic, specialized ceramics can be engineered to match these precise thermal characteristics. Three-Circle controls roughly 40% of the global market for crystal oscillator ceramic packaging bases.¹⁹

From a commercial perspective, ceramic packaging bases offer a higher-growth profile than traditional optical ferrules. While ferrule volume correlates with physical network connections and fiber kilometers, packaging base demand scales directly with component density inside high-frequency transceivers and accelerators — a metric growing far more rapidly in AI architectures.

The numbers of the AI year

The financial impact of these dual drivers materialized fully in early 2026. In the first quarter, revenue rose 46.25% year over year to ¥2.681 billion, net profit attributable to shareholders reached ¥791 million (up 48.48%), and gross margin expanded to 43.49%.²⁰

On July 21, 2026, Three-Circle issued positive earnings guidance for the first half of the year, projecting net profit of ¥1.794 billion to ¥2.041 billion, representing year-over-year growth of 45% to 65%. Net profit excluding non-recurring items was projected to grow 55% to 80%.⁴ Management attributed the growth to two operational factors: expanding MLCC shipment volumes alongside price recoveries as certain specifications saw prices "repair to their original reasonable value," and increased demand for optical ferrules and sleeves driven by global data center construction.⁴ Following the disclosure, the company's Shenzhen-listed shares rose 12.04% to close at ¥101.40.⁵

Management's description of price adjustments as a "repair to reasonable value" characterizes the increase as a recovery from depressed cyclical troughs during 2023 and 2024, rather than a permanent structural reset. Whether unit prices remain at these elevated levels will depend on industry supply absorption as new global capacity comes online. Notably, the faster growth rate in core earnings excluding non-recurring items indicated that the first-half profit acceleration stemmed primarily from core manufacturing operations rather than government subsidies or investment income.

Fuel cells: the option nobody paid for

Three-Circle's long-standing solid-oxide fuel cell (SOFC) initiative established its first major commercial reference installation. Partnering with 深圳燃气 Shenzhen Gas, the company's subsidiary deployed a 300-kilowatt SOFC demonstration system at the East Campus of Guangming District People's Hospital in Shenzhen, promoted as China's first commercial installation in that power class. The system reported electrical generation efficiency of 64.1% and total combined heat and power efficiency exceeding 92%, maintaining stable operation through mid-2025.²¹

These efficiency metrics highlight the technological rationale for SOFC deployment. Achieving 64.1% electrical efficiency at a 300-kilowatt scale compares favorably with utility-scale combined-cycle gas turbine power plants operating at hundreds of megawatts, while producing virtually no nitrogen oxide emissions due to non-combustion electrochemical conversion.

However, commercial adoption faces structural hurdles. SOFC equipment costs per kilowatt remain high, long-term economic viability depends on stack durability over multi-year operational cycles that short-term demonstrations have yet to validate, and regional market viability varies based on natural gas prices, electricity tariffs, and government subsidies. While Three-Circle controls over 85% of the global market for SOFC electrolyte membranes, system-level commercialization across broader power markets remains in early stages.²

The power demands of AI data centers offer a potential growth catalyst for distributed generation. On-site SOFC units operating on natural gas can provide continuous power without waiting for utility grid connection queues. Nevertheless, Three-Circle's ability to translate electrolyte membrane dominance into market share for complete SOFC systems against established power equipment vendors remains unproven. Wall Street and domestic sell-side projections estimating ¥1.0 billion to ¥1.2 billion in 2026 SOFC revenue reflect external analyst expectations rather than formal corporate guidance.²²

The Hong Kong listing, and the awkward question it raises

This capital expansion leads back to the company's July 9, 2026 Hong Kong listing and the capital allocation questions surrounding the offering.

As of the third quarter of 2025, Three-Circle held approximately ¥8 billion in cash and liquid financial assets, comprising roughly ¥5.2 billion in monetary funds and ¥2.7 billion in financial assets.⁹ Operating cash flow reached ¥2.88 billion in 2025.³ Having previously raised over ¥7 billion cumulatively from its Shenzhen IPO and subsequent private placements, the company possessed sufficient domestic liquidity to fund existing capital expenditure programs without additional equity issuance.

Three-Circle framed the HK$7.16 billion transaction around operational rather than solvency needs. Management noted that establishing an offshore capital pool allows the company to fund international projects without undergoing case-by-case cross-border foreign exchange approval procedures for foreign currency expenditures.⁹ Listing proceeds were designated for overseas facility construction and automation — including expanding fuel cell manufacturing in Thailand, enlarging precision piezoelectric micro-dispensing operations in Germany, building data center component capacity, and scaling communications device output — alongside ongoing technology R&D across MLCCs, ferrules, and semiconductor packaging bases, as well as working capital.⁹

While operational flexibility and overseas projects represent concrete objectives, the H-share offering also mirrored a broader trend among major Chinese industrial hardware companies accessing Hong Kong capital markets during 2025 and 2026. The listing capitalized on favorable equity valuations for hard-technology companies, secured international index inclusion, and broadened the investor base. Capital was raised on advantageous terms at a time when establishing production capacity outside mainland China became essential for serving global technology customers.

The geographic allocation of capital carries significant strategic weight. Establishing fuel cell and precision equipment manufacturing in Thailand and Germany provides a structural hedge against international trade tariffs, export controls, and customer mandates for supply chain diversification outside China.

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VII. Capital Allocation, Governance, & M&A Strategy

There is a straightforward test for whether a corporate management team maintains true capital discipline: not what executives promise on earnings calls, but how they deploy cash in the weeks following a sharp stock rally.

Three-Circle provided a clear case study in July 2026.

The buyback, and the loan

On July 20, 2026 — the day before releasing its strong first-half earnings guidance — the board approved an open-market share repurchase programme of ¥450 million to ¥900 million.²³ By July 30, the company completed the buyback, spending ¥895 million to repurchase 8.5473 million A-shares — roughly 0.43% of shares outstanding — at prices ranging from ¥99.10 to ¥110.50.²³ That same announcement disclosed a second repurchase programme of ¥500 million to ¥1 billion, capped at ¥135 per share, designated for employee incentive plans and shareholder value defense.²³

Executing an ¥895 million buyback in just eight trading days was no token gesture; it signaled strong management conviction during a period of stock price volatility.

On July 31, 2026, however, the company disclosed a loan commitment letter from the Chaozhou branch of 中国工商银行 Industrial and Commercial Bank of China for up to ¥900 million over a three-year term, dedicated specifically to funding share repurchases.²⁴

That sequence presents an intriguing corporate finance puzzle. A company sitting on approximately ¥8 billion in cash and liquid financial assets, having just raised HK$7.16 billion in Hong Kong under the explicit rationale of funding overseas expansion, turned around and borrowed ¥900 million from a domestic bank to buy back its own shares.

There are logical explanations for the arrangement. Chinese regulators actively encouraged bank-financed buyback facilities starting in late 2024 to support domestic equity markets. Taking advantage of low, policy-subsidized borrowing rates while leaving higher-yielding financial assets undisturbed can generate net-accretive returns. Furthermore, the Hong Kong listing proceeds were raised offshore and earmarked for international projects, whereas the share repurchases were executed onshore. Corporate treasuries rarely operate as a single monolithic pool of capital.

Even so, three concurrent actions — issuing equity offshore, maintaining a large domestic cash reserve, and taking on bank debt onshore to repurchase shares — create a confusing capital allocation narrative. Without a unified explanation from management, such mixed signaling risks leading investors to apply a valuation discount.

The M&A record, which is the good news

By contrast, Three-Circle's acquisition history offers a model of capital restraint. Over more than three decades, the company has avoided large-scale mergers and acquisitions. Its most significant transaction was the bargain purchase of insolvent Ceramic Fuel Cells' operations, securing stack and system designs that would have required a decade to develop in-house.¹³

The counterfactual is instructive. Many Chinese electronics manufacturers with similar cash balances used capital to acquire semiconductor equipment vendors at peak valuations, enter display materials, or buy listed shells in unrelated sectors. Three-Circle instead directed its capital expenditure into proprietary powder formulation, tape-casting machinery, and expanded capacity within its core competencies. Avoiding wasteful 多元化 diversification initiatives has preserved balance sheet quality.

Research and development expenditure reached ¥653 million in 2025, an increase of 12.07% year over year.¹¹ Representing roughly 7% of annual revenue, R&D spending remains substantial for a passive-components maker, though it lagged overall revenue growth for the year — a minor concern for an enterprise seeking to move up the technological value chain.

Management, and what the record shows

The corporate leadership structure has evolved alongside the Hong Kong listing. Zhang Wanzhen, age 76, remains the controlling shareholder.³ Meanwhile, 李钢 Li Gang, born in April 1983, serves as director and general manager. Li delivered the keynote address at the Hong Kong listing ceremony, framing technological innovation as the primary engine of long-term growth.² Having a 43-year-old chief executive lead an international listing while the founder and controlling owner is 76 presents a clear succession signal, regardless of whether a formal transition plan has been announced.

Operational history reveals a consistent managerial profile. On forward guidance, management remains cautious, issuing few forecasts and providing a wide 45% to 65% profit growth band for the first half of 2026 only after the period ended. Execution against long-term plans has been mixed but improving: while the MLCC capacity funded by the 2020 and 2021 private placements was successfully constructed and fully deployed by 2026, market absorption took longer than initial estimates due to the 2022–2023 industry downturn. Furthermore, management offers limited explanation when timelines slip, favoring high-level product overviews over detailed variance analysis.

The company's online results briefing on April 16, 2026, illustrated this communication style. Management reiterated the "rice of the electronics industry" metaphor to highlight long-term MLCC market potential, outlined its automotive product line, confirmed the Hong Kong listing timeline, and highlighted its R&D spending alongside its historical dividend record.¹¹ However, executives avoided detailed discussion of unit pricing trends, competitive dynamics against major rivals, or production yield rates for high-layer-count capacitors. Investors accustomed to the granular operational disclosures of Japanese or American peers will find Three-Circle far more reticent.

Such reticence does not imply operational impropriety. Rather, it underscores the need for investors to analyze audited financial metrics — including accounts receivable growth, inventory levels, cash conversion cycles, and segment gross margins — rather than relying on qualitative executive commentary.

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VIII. Strategy & Playbook: Material Science Powers & 7 Powers Analysis

Stripping away the narrative raises a fundamental structural question: what prevents a well-capitalized competitor from replicating Three-Circle's position?

Process Power — the real one

In Hamilton Helmer's framework, Process Power represents an operational advantage embedded within an organization's activities that competitors cannot easily replicate, even with full knowledge of the workflow. As the rarest and most defensible of the 7 Powers, it resists both capital expenditure and reverse engineering.

Three-Circle's process advantage relies on three elements. First is powder synthesis, where internal production controls particle size distribution and purity—the primary variables governing dimensional predictability after firing. Second is slurry and binder chemistry, ensuring green tapes can be cast at sub-micron thickness without pinholes. Third is kiln profile optimization, establishing the specific time-temperature-atmosphere curves that allow hundreds of layers to co-fire without delamination—a capability refined through decades of empirical trial and embedded in proprietary equipment.

This operational capability translates directly into financial performance. The company maintains consolidated gross margins in the low 40% range across segments where unintegrated competitors earn significantly lower returns, placing its gross margin roughly 14 percentage points above the sector average.¹⁰ Sustained margin differentials in commodity-adjacent components indicate a structural cost advantage that peers cannot readily replicate.

Scale Economies — real, but confined

With a global market share exceeding 70% in optical ferrules and over 50% in alumina ceramic substrates, Three-Circle maintains a cost position anchored in production volume several times larger than its nearest competitor.² Fixed costs—including research and development, equipment engineering, and quality management systems—are amortized across an industry-leading unit volume.

However, this cost advantage remains segment-specific. A 3% global market share in MLCCs confers no scale advantage against Murata's nearly 32% share.³ In the product segment absorbing the majority of its capital expenditure, Three-Circle remains a sub-scale player. Management's strategic rationale relies on a shared platform model, asserting that upstream powder synthesis and internal equipment manufacturing lower MLCC unit costs below what standalone volume would dictate. While segment margins lend partial support to this thesis, the model has yet to be tested across a full MLCC pricing cycle at current operational capacity.

Switching Costs — narrow but hardening

For standard chip resistor substrates, customer switching costs remain minimal. Conversely, for automotive-grade MLCCs qualified under AEC standards or hermetic ceramic packaging bases for 800G optical modules, switching costs are substantial. Re-qualification requires multiple quarters, entails significant testing costs, and introduces warranty risks that far outweigh potential unit cost savings. This structural friction strengthens Three-Circle's positioning, rendering automotive and optical design wins more valuable long-term assets than current revenue contributions suggest.

Counter-Positioning — the domestic substitution card

Three-Circle provides domestic equipment manufacturers with viable performance at competitive pricing, backed by supply chain security. Incumbent overseas suppliers cannot match unit pricing without eroding their own higher-margin product lines, nor can they counter the supply-security imperative that specifically targets reliance on foreign vendors.

This counter-positioning dynamic has driven MLCC volume expansion over recent years, though its long-term runway has limits. Counter-positioning succeeds while incumbents rationally choose not to retaliate. As domestic suppliers capture higher market share and incumbents such as Murata and Samsung Electro-Mechanics direct capacity toward high-margin AI server applications, foreign players may yield the mid-tier segment. That shift would leave Three-Circle competing primarily against domestic peers—including 风华高科 Fenghua Advanced, 宇阳科技 Eyang, 微容科技 Microgate, and Taiwan's Yageo (國巨)—all of whom deploy similar counter-positioning arguments and lack structural incentives for price discipline.

The five forces, honestly scored

Supplier power: low. Extensive vertical integration—spanning raw chemical inputs, powder formulation, tape casting, firing, finished component assembly, and internal equipment fabrication—eliminates key supply chain bottlenecks that constrain unintegrated passive component makers. This vertical integration represents one of the company's core structural features.

Buyer power: moderate and expanding. Key customers include major original equipment manufacturers—such as Huawei (华为), Xiaomi (小米), and BYD (比亚迪)—alongside optical module manufacturers and distributors. During component shortages, such as in early 2026, buyer power declines and Three-Circle exercises pricing leverage. Conversely, in balanced or oversupplied markets, buyer power returns quickly. A growing accounts receivable balance reflects this dynamic, as growth into new customers has been financed with extended terms.³

Threat of substitutes: low. No non-ceramic alternative offers comparable high-temperature-stable capacitance within sub-millimeter footprints, nor provides thermally matched hermetic enclosures for laser diodes. The primary long-term substitution risk is architectural rather than material: the adoption of silicon photonics and co-packaged optics could reduce the number of discrete pluggable optical connections required per unit of bandwidth.

Rivalry: bifurcated. In optical ferrules and ceramic substrates, competitive rivalry remains limited, as market sizes and cost differentials deter major new entrants. In MLCCs, rivalry is intense across two fronts: established Japanese and South Korean suppliers at the high end, and numerous domestic Chinese producers expanding into mid-tier domestic substitution opportunities below.

New entrants: low in specialized niches, moderate in MLCCs. Establishing MLCC manufacturing capacity requires substantial capital expenditure and process development time. Conversely, entering mature niche markets to challenge a dominant incumbent holding a 70% market share offers limited economic return for prospective competitors.

The strategic synthesis is clear: Three-Circle holds strong moats in two mature, specialized businesses and reinvests that cash flow into a far larger MLCC market where its competitive advantage remains developing. That structural dynamic forms the central baseline for the company's long-term operational outlook.

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IX. Analysis, Skeptical Stress Test, & Bull vs. Bear Case

Every company with a compelling narrative has a counter-narrative that exposes its structural vulnerabilities. Evaluating Three-Circle requires testing that thesis against its operational and financial realities.

Stress test one: the commodity trap

The most serious challenge to the investment case is structural. Three-Circle generated its high historical returns from two niche markets where it faced minimal competition and required moderate capital intensity. It is now redeploying that cash flow into a sector where five global incumbents and a dozen domestic rivals dominate, where capital intensity is far higher, and where its market share stands at just three percent.

Even if the MLCC business succeeds in expanding top-line revenue — as it did by growing 43.95% in 2025 to become the largest division¹⁶ — the return on incremental invested capital may prove structurally lower than in the business it replaced. Consolidated gross margin declined 0.85 percentage points in 2025 despite a 22% surge in revenue.¹⁰ While modest, that margin compression is directionally consistent with a product mix shift toward lower-margin components, marking a key metric to track across a complete industry cycle.

The counter-argument is that the optical ferrule and resistor substrate franchises faced natural addressable market caps — niche monopolies in markets too compact to absorb expanding cash flow. A company that refuses to reinvest surplus cash risks gradual liquidation. Deploying capital into MLCCs may yield lower returns than legacy niches while remaining the most rational strategic allocation.

Stress test two: technology disruption in optics

The optical ferrule and packaging base franchises rely on optical transceiver architectures built from discrete components and pluggable connectors. Two architectural shifts threaten that model over time. Silicon photonics integrates optical functions directly onto a silicon die, reducing discrete component counts. Co-packaged optics mounts the optical engine onto the switch package itself, eliminating several traditional pluggable interfaces.

A measured assessment suggests this represents a medium-term risk on a five-to-ten-year horizon rather than an immediate threat. Even co-packaged designs require fiber attachment points, and higher-density modules often increase the requirement for hermetic ceramic packaging bases even as connector counts fall. Consequently, the ceramic packaging base business, tied to component density, provides a partial hedge against the optical ferrule business, which is tied to connection volume. Nevertheless, long-term architectural trends do not favor discrete connectors.

Stress test three: the cycle in disguise

The financial results reported in early 2026 appear exceptional, led by first-quarter revenue growth of 46.25%, first-half profit guidance projecting a 45% to 65% increase, and a gross margin reaching 43.49%.²⁰⁴ However, each of those figures is elevated by an industry-wide component shortage, during which spot prices for high-capacity MLCCs rose 50% to 60% and delivery lead times doubled.¹⁸

Industry shortages inevitably subside as producers respond to high pricing by bringing new supply online, including Murata's ¥250 billion capital expenditure program¹⁸ and parallel capacity additions across domestic Chinese peers. When that supply arrives — likely in 2027 or 2028 — market pricing will normalize, reversing the pricing tailwind that drove the 2026 performance surge.

Evaluating the business requires isolating structural gains from temporary pricing effects. Expanding shipment volumes into artificial intelligence data centers and electric vehicles, persistent automotive qualifications, and market share in ceramic packaging bases represent structural strengths. Price recovery does not. Extrapolating 2026 growth rates risks mistaking a cyclical peak for a permanent baseline.

Stress test four: the activist's list

A skeptical investor evaluating the balance sheet would focus on four specific areas of vulnerability.

Earnings quality. Non-operating sources, primarily government grants and interest income, accounted for roughly a fifth to a third of annual net profit between 2023 and 2025.¹⁷ These items do not represent recurring operational cash flows or durable competitive advantages.

Capital allocation coherence. Executing an offshore equity offering, holding approximately ¥8 billion in onshore cash, and securing a domestic bank loan to fund share repurchases all within a twelve-month span presents a fragmented capital management strategy.⁹²³²⁴

Working capital expansion. Accounts receivable grew faster than revenue for three consecutive years, first-quarter 2026 operating cash flow fell 35.41% year over year, and inventory expanded — an accumulation management attributed to strategic raw material stockpiling.³ While individually defensible, the combined trend warrants ongoing scrutiny.

Ownership concentration and governance. Controlling shareholder Zhang Wanzhen, at age 76, holds approximately 36% of the company through an investment vehicle without a publicly detailed succession plan, in an organization whose core asset is institutional process know-how.³

The bear case, assembled

Japanese and South Korean incumbents retain a multi-year technological lead in high-value MLCC categories, including ultra-miniature formats, high capacitance, and server-grade components where Murata and Samsung Electro-Mechanics hold dominant market positions.¹⁸ Three-Circle operates primarily in mid-tier segments where domestic Chinese competition is intense. Peer producer Fenghua Advanced guided for first-half 2026 net profit growth of 61.84% to 79.82%, reaching ¥270 million to ¥300 million¹⁸ — demonstrating that domestic peers are benefiting from the same temporary demand tailwind and expanding capacity in parallel.

Once the shortage resolves, aggregate domestic capacity expansion in China risks causing localized oversupply and gross margin compression, echoing the 2022–2023 downturn. Concurrently, solid-oxide fuel cell commercialization — despite strong efficiency metrics — may remain years away from delivering material revenue, serving as an ongoing capital and research drag. Under this scenario, the group's consolidated gross margin steadily contracts as lower-margin component sales comprise a growing share of total revenue.

The bull case, assembled

The counter-argument rests on three distinct operational drivers.

First, domestic substitution represents a multi-year, policy-backed volume expansion that compounds with rising unit demand in electric vehicles and AI servers. Three-Circle's automotive MLCC product line, spanning standard size formats with high capacitance,¹¹ positions the company in high-margin, sticky applications where switching costs are high.

Second, the optical component franchise provides a near-monopoly position tied to global data center construction. Controlling over 70% of the optical ferrule market and roughly 40% of the crystal packaging base market²¹⁹ enables Three-Circle to capture structural growth in AI infrastructure spending without needing to win new competitive bids.

Third, deep vertical integration offers downside margin protection. Three-Circle entered the 2022–2023 industry downturn with gross margins in the mid-forties and exited with those margins largely intact,¹⁰ demonstrating empirically that internal powder synthesis and equipment fabrication shield profitability relative to unintegrated peers buying raw materials on the spot market.

For long-term investors, the outcome is not binary. The optical ferrule and substrate franchises remain high-margin, defensive cash generators. The MLCC expansion is a capital-intensive growth initiative with strong strategic logic but a cyclical, uncertain return profile currently boosted by short-term supply constraints. The fuel cell division operates as a technological option with unproven commercial economics. The investment thesis ultimately depends on how efficiently management allocates capital across these three distinct business lines.

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X. Epilogue & Key Investor Metrics to Watch

Fifty-six years after a group of basket weavers in a Chaozhou temple were handed ceramic powder and told to make radio parts, their successors sell into every major AI data centre on earth. That arc is not a story about a brilliant strategic insight. It is a story about a company that decided, early and permanently, that the way to win in materials was to control the material.

What the story teaches

The first lesson is about where hardware advantage actually lives. Three-Circle's competitors could always see what it was making. They could buy the same equipment and hire from the same labour pool. What they could not buy was three decades of accumulated process knowledge about how a specific powder behaves inside a specific kiln — which is why the decision to synthesize its own powders and build its own furnaces, taken when capital was scarce and the obvious path was importing turnkey lines, became the most consequential choice in the company's history.

The second lesson is about what mature businesses are for. Optical ferrules and resistor substrates were never going to offer vast growth runways. They were, however, capable of generating reliable cash flows for decades with minimal capital reinvestment. Managed well, such franchises function as an internal venture fund that never demands capital returns. Three-Circle deployed that cash to fund one failed expansion into ceramic smartphone casings, one far larger structural bet in MLCCs still being resolved, and one long-dated option in solid-oxide fuel cells. The portfolio approach is sound; the individual outcomes remain open.

The third lesson is the uncomfortable one. Nothing in this development required Three-Circle to be an innovator in the conventional sense. It did not invent the ceramic ferrule, the MLCC, or the solid-oxide fuel cell. It took existing component designs and became the industry's most efficient volume producer. That remains a legitimate model for building an industrial enterprise — but it also means returns derive from cost position rather than pricing power, leaving margins vulnerable to competitor capacity additions.

Three metrics that matter

For investors tracking the business in coming years, three core operational metrics will determine performance.

One: the high-capacitance and miniaturised share of MLCC revenue. This is the cleanest measure of whether Three-Circle is genuinely capturing high-end market share from Murata or merely adding volume in commodity mid-range components. Mid-range MLCCs face persistent price competition, whereas high-capacitance server and automotive components command higher gross margins. If the product mix shifts upward, the domestic substitution thesis is proceeding. If revenue grows while product mix remains flat, the company is scaling a high-volume business at lower incremental returns.

Two: blended gross margin through a full cycle, alongside the receivables-to-revenue relationship. Blended gross margin reveals whether rapid MLCC expansion is diluting the group's historical low-forties margin profile. The receivables trend indicates whether top-line expansion is being supported by extended payment terms. Evaluated together, these metrics show whether top-line growth is generating sustainable operating cash flow.

Three: PKG ceramic packaging base capacity and optical module customer penetration. This offers the most direct read on AI infrastructure pass-through and highlights the company's most defensible growth segment. It also serves as an early indicator regarding silicon photonics adoption: if optical packaging demand decouples from data centre construction velocity, an architectural transition toward co-packaged optics is underway.

Final thoughts

Three-Circle enters the second half of 2026 with an accelerating earnings profile, a fresh Hong Kong listing, substantial cash reserves, and end markets in optical communications and AI server power delivery expanding rapidly.

Simultaneously, the majority of its recent capital expenditure sits in a market where it holds single-digit share, a noticeable portion of reported net profit relies on government grants, working capital is absorbing cash as inventory and receivables grow, and current earnings growth reflects an industry component shortage that will eventually normalize as global capacity expands.

Both realities coexist. The distance between them defines the investment debate — one settled not by corporate guidance over coming quarters, but by where gross margins and product mix settle once newly built industry capacity reaches the market.

References

1. 三环集团港股挂牌：募资71.58亿港元，中国银河国际担任独家保荐人 — 金融界, 2026-07-09 ↩↩

2. 三环集团正式登陆港交所，市值超2045亿港元，全球电子陶瓷垂直一体化龙头 — ZAKER, 2026-07-09 ↩↩↩↩↩↩↩↩↩↩

3. 76岁潮州首富掌舵，三环集团再闯港交所，掘金MLCC应收账款逐年攀升 — 同花顺财经, 2026-06-11 ↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩↩

4. 三环集团：2026年半年度业绩预告 — 东方财富网, 2026-07-21 ↩↩↩↩

5. 三环集团（06951.HK）披露2026年半年度业绩预增公告，7月21日股价上涨12.04% — 搜狐, 2026-07-21 ↩↩

6. 中国产业叙事：三环集团 — ZAKER ↩

7. Chaozhou Three-Circle — Wikipedia ↩↩↩↩↩↩↩

8. 从副市长到潮州首富，起底三环集团背后的掌舵人张万镇 — 腾讯新闻, 2026-06-01 ↩↩↩↩

9. 全球七成光纤插芯、账上80亿现金，三环集团为什么去香港再融一轮 — 凤凰网财经 ↩↩↩↩↩

10. 三环集团(300408)：2025年业绩稳健 MLCC主业与SOFC新业务协同并进 — 九方智投 ↩↩↩↩↩↩

11. 调研速递｜三环集团（300408）接受全体投资者调研 2025年研发投入6.53亿元 — 新浪财经, 2026-04-17 ↩↩↩↩↩

12. 除了小米，没人在做陶瓷了 — PingWest品玩 ↩

13. 2022年三环集团研究报告：电子陶瓷元件国内龙头，产业链一体化引领者 — 未来智库, 2022-08-22 ↩↩↩

14. 去年11月刚完成融资近22亿，三环集团又抛出75亿定增扩产计划 — 新浪科技, 2021-05-16 ↩↩

15. 三环集团"豪赌"MLCC — 网易 ↩↩

16. 三环集团2025年报解读：营收增22.13%至90.07亿元 — 搜狐 ↩↩↩

17. 三环集团港股上市冲高回落，实控人张万镇曾任副市长，3年获政府补助9亿元 — 腾讯新闻, 2026-07-09 ↩↩↩

18. MLCC行业面临结构性涨价：AI服务器需求推动高端产能紧张，村田等三大厂商接力涨价 — 虎嗅网, 2026 ↩↩↩↩↩↩↩

19. 三环集团（300408）：MLCC扩产+SOFC商业化双线并进 — 雪球 ↩↩

20. 三环集团：2026年一季度净利润7.91亿元 同比增长48.48% — 东方财富网, 2026-04-24 ↩↩

21. 三环集团：深圳光明区人民医院东院区SOFC示范项目发电系统运行稳定 — 网易, 2025-07-04 ↩

22. 国海化工｜三环集团2025年年报点评：主业多点放量，SOFC大时代将至 — 新浪财经, 2026-03-30 ↩

23. 三环集团：完成8.95亿元股份回购 再推5-10亿元回购计划 — 新浪财经, 2026-07-30 ↩↩↩↩

24. 三环集团：取得工商银行9亿元股票回购贷款承诺函 — 每日经济新闻, 2026-07-31 ↩↩