Zhongji Innolight Co., Ltd. (ZJ INNOLIGHT) (03308)

Equity Research Report　|　Industry: High-Speed Optical Communications Optical Modules and Optical Interconnect Solutions　|　Report Date: September 13, 2026　|　As of the Hong Kong market close on September 11, 2026; all prices and amounts are denominated in Hong Kong dollars (HKD). 03308 was listed on the Main Board of Hong Kong on July 30, 2026, at an offer price of HKD 980.00.

This report was automatically compiled by AI based on publicly available information and is for reference only. It does not constitute investment advice.

1. Executive Summary

Zhongji Innolight (03308) recorded revenue of RMB 41.778 billion in the first half of 2026, up 182.49% year on year, and profit attributable to owners of the company of RMB 13.651 billion, up 241.70% year on year. Net profit growth exceeded revenue growth, driven mainly by increased AI infrastructure investment, growth in shipments of 800G and 1.6T high-speed optical modules, product-mix upgrades and improved operating efficiency. Optical-module revenue during the period was RMB 41.355 billion, accounting for approximately 99.0% of total revenue; revenue from outside mainland China was RMB 39.615 billion, accounting for approximately 94.8%, indicating that the company’s current performance is highly concentrated in high-speed optical modules and overseas markets.

The company’s full-year 2025 revenue was RMB 38.240 billion and profit attributable to shareholders was RMB 10.797 billion. Revenue from optical communications transceiver modules in 2025 was approximately RMB 37.374 billion, with a business gross margin of 42.61%. From 2022 to 2025, the company’s gross margin rose from approximately 29.31% to approximately 42.04%, reflecting the contribution of a higher proportion of 800G and 1.6T products, greater penetration of silicon-photonics solutions, yield improvements and economies of scale. However, further profit improvement remains dependent on continued volume growth of high-end products and favorable industry supply-demand conditions.

As of September 11, 2026, 03308 closed at HKD 1,170.00, approximately 19.39% above the Hong Kong IPO price of HKD 980.00. The share price was above the MA5, MA10 and MA20, while the RSI was approximately 67, indicating strong short-term momentum. However, the share price had not yet effectively broken through the HKD 1,200–1,240 resistance zone. The stock had been listed for less than two months, leaving a limited historical trading sample and showing clear characteristics of sharp rises and falls. Turnover was approximately HKD 3.787 billion on the day, while short-selling turnover was approximately HKD 165 million, or approximately 4.34% of total turnover, down from approximately 16%–18% previously. Short-term sentiment has improved, although the battle between bulls and bears remains intense.

The company has continued to repurchase A-shares on the Shenzhen Stock Exchange. As of September 10, 2026, it had repurchased a cumulative 2,926,917 shares for approximately RMB 2.522 billion. The repurchased shares are temporarily held as treasury shares, so the short-term accretion to earnings per share is limited. No repurchases of the Hong Kong H shares themselves had occurred. In terms of valuation, platform-displayed P/E figures of approximately 56–57x, approximately 102–103x and approximately 106.1x show clear differences in calculation basis. Based on a share price of approximately HKD 1,161–1,173 and actual 2025 earnings, valuation is approximately 100x. The market has already priced in relatively high expectations for continued growth in 800G, 1.6T, silicon photonics and subsequent high-speed products.

2. Company Overview

2.1 Basic Information

2.2 Principal Businesses and Product Portfolio

• High-speed datacom optical modules: mainly 400G, 800G and 1.6T products, currently the core sources of revenue and profit
• Medium- and low-speed optical modules: mainly 200G, 100G and below
• Telecom optical modules: used in 5G fronthaul, midhaul and backhaul, as well as metro, backbone and core-network transmission
• Optical components: including optical devices, optical subassemblies and transistor-outline metal-can packaging components
• Automotive optoelectronics: mainly for in-vehicle optical transmission and fiber-to-the-vehicle solutions
• Next-generation technology pipeline: silicon photonics, coherent optical communications, XPO, LPO and LRO, with continued investment in CPO and NPO technology routes

2.3 Position in the Upstream and Downstream Value Chain and Cost-Profit Structure

Zhongji Innolight occupies the middle of the optical-communications value chain. Its core business involves module integration, packaging, testing and scaled manufacturing of upstream inputs such as optical chips, electronic chips, optical devices and structural components. It provides high-speed optical communications transceiver modules and optical-interconnect solutions to global cloud-service providers, AI-infrastructure customers, telecom-equipment manufacturers and data-center customers.

• Major procurement categories include optical devices, integrated-circuit chips and structural components. Optical devices and chips include optical transmitters, optical receivers, lasers, detectors, DSPs and related driver chips. Structural components include module housings, heat-dissipation components and connectors.
• Major raw materials are supplied by third-party vendors, with some key materials sourced overseas. The company is not a monopolist in upstream optical-chip or electronic-chip resources and has certain characteristics of a price taker when supplies of high-end optical chips, DSPs and certain key components are tight.
• Procurement from the five largest suppliers in 2025 was approximately RMB 12.797 billion, representing 51.50% of total annual procurement. Procurement from the largest supplier was approximately RMB 8.886 billion, representing 35.76% of total procurement. Supplier names were anonymized for confidentiality, and the specific companies cannot be confirmed from the public annual report.
• The company retains some countervailing bargaining power, supported by global procurement scale, long-term customer orders, high product shipment volumes, supplier-certification systems and production capacity across mainland China, Taiwan and Thailand. It plans to establish a diversified raw-material procurement system to reduce the risks associated with a single supplier or region.
• Major customers include leading global cloud-service providers, AI-computing solution providers, telecom-equipment manufacturers and data-center customers. Overseas revenue in 2025 was approximately RMB 34.637 billion, approximately 90.6% of full-year revenue, with revenue mainly generated in North America and other overseas markets.
• The company primarily uses direct sales. Direct-sales revenue in 2025 was approximately RMB 37.739 billion, approximately 98.7% of total revenue. Sales to the five largest customers were approximately RMB 29.056 billion, or 75.98% of annual sales; the largest customer accounted for 24.06%, while the second through fifth largest customers accounted for 18.26%, 14.22%, 11.34% and 8.10%, respectively.
• The above customer-concentration data relate to 2025. Customers are identified as Customers A through E in the annual report, and their specific identities cannot be confirmed solely from the annual report. The data are mainly sourced from the company’s annual-report disclosures and have not been cross-checked against other independent sources. The latest annual report should prevail.
• Large downstream cloud-service providers and AI-infrastructure customers have strong purchasing scale, certification capabilities and supply-chain management capabilities. They may suppress module prices through annual price reductions, supplier bidding, product iteration and multi-supplier strategies. The company does not possess downstream pricing power in an absolute sense.
• High-speed optical modules have high barriers in customer certification, delivery speed, yield and stability. When AI-computing infrastructure is expanding rapidly and qualified-supplier capacity is temporarily insufficient, the company has some supply-side bargaining power due to its large-scale production, long-term certifications and global delivery capabilities.
• Working-capital data show that the accounts-receivable turnover ratio was 6.64x in 2024, corresponding to approximately 55 days, compared with 5.24x, or approximately 70 days, in 2023. Collection efficiency improved in 2024. Net cash flow from operating activities in 2025 was approximately RMB 10.896 billion, close to the RMB 10.797 billion in profit attributable to shareholders of the parent. Overseas optical-communications transceiver-module sales in 2025 were approximately RMB 34.614 billion, with a disclosed collection rate of 98%. These figures support the view that major-customer credit quality and collection capacity are currently strong. However, two-way concentration among customers and suppliers could increase inventory and working-capital pressure if customer capital expenditure slows, customers introduce alternative suppliers or supplies of key components are constrained.
• The company has clear “two-way concentration”: the five largest upstream suppliers accounted for 51.50% of procurement in 2025, with the largest supplier accounting for 35.76%; the five largest downstream customers accounted for 75.98% of sales, with the largest customer accounting for 24.06%. Supplier and customer names have been anonymized. Concentration data are mainly sourced from the company’s annual report and have not been cross-checked against other independent sources. The latest disclosure should prevail.

The company is positioned in the middle of the optical-communications value chain and is a high-end manufacturer focused on the R&D, packaging, testing and scaled production of high-speed optical modules. It is neither an upstream monopolist in optical-chip resources nor a downstream company with end-brand pricing premiums. Current profit improvement depends mainly on upgrades to 800G and 1.6T products, customer certification and share gains, mass production, yield improvements, silicon-photonics penetration and global capacity deployment. If product prices decline, 1.6T volume growth falls short of expectations or industry expansion restores supply-demand balance, gross margin could decline.

3. Financial Data and Valuation Analysis

3.1 Recent Operating Performance

First-half 2026 data are from the company’s 2026 interim report; full-year 2025 data are from its 2025 annual report. Amounts are denominated in RMB. First-half 2026 non-GAAP profit attributable to the parent was RMB 13.092 billion, up 229.32% year on year; operating profit was RMB 17.231 billion, up 253.30%; net cash flow from operating activities was RMB 1.800 billion, up 44.08%; and basic EPS was RMB 12.31. 2025 non-GAAP profit attributable to the parent was RMB 10.710 billion, up 111.31%; net cash flow from operating activities was RMB 10.896 billion, up 244.31%; and basic EPS was RMB 9.80.

The company achieved substantial growth in both revenue and profit attributable to the parent in the first half of 2026, with net profit growth exceeding revenue growth. The company explained that growth was primarily driven by major AI customers’ continued investment in computing infrastructure, rapid shipment growth of 800G and 1.6T products, product-mix upgrades and improved operating efficiency. This trend may indicate improvements in the proportion of high-end products, gross margin or operating leverage, although a complete profit-margin breakdown was not separately disclosed in the research notes. In 2025, revenue from optical-communications transceiver modules and devices in the principal business was approximately RMB 38.155 billion, of which optical-communications transceiver-module revenue was approximately RMB 37.374 billion and remained the absolute core business.

3.2 Earnings Forecasts

The etnet page indicates that the net-profit and EPS consensus mainly comprises estimates from Goldman Sachs and Nomura, and does not represent a broad-based Hong Kong sell-side consensus. Goldman Sachs’ institutional forecasts for profit attributable to the parent from 2026 to 2028 are RMB 40.432 billion, RMB 86.903 billion and RMB 137.110 billion, respectively, with EPS of RMB 35.15, RMB 74.29 and RMB 117.21. Nomura’s corresponding forecasts are RMB 35.844 billion, RMB 76.341 billion and RMB 114.172 billion, with EPS of RMB 30.74, RMB 65.47 and RMB 97.91. Goldman Sachs’ revenue forecasts are from a single institution and are less reliable than the net-profit aggregation. Earlier revenue forecasts for the A-share version differ from the Hong Kong coverage version and should not be mixed mechanically.

3.3 Valuation and Institutional Ratings

As of early September 2026, etnet showed a 03308 price of approximately HKD 1,161 and a Hong Kong market capitalization of approximately HKD 75.398 billion. Lixinger, using the September 9, 2026 closing price of HKD 1,173, showed total market capitalization of approximately HKD 1.38 trillion and H-share market capitalization of approximately HKD 73.518 billion. The two figures use different statistical bases and cannot be compared directly. Valuation data also differ materially: etnet shows a full-year P/E of approximately 106.1x; Lixinger shows a P/E of approximately 59.01x, a P/B of approximately 29.99x and a dividend yield of approximately 0.12% as of September 9, 2026; Webull shows a trailing P/E of approximately 57.823x. Differences may arise from static P/E, trailing P/E, annualized interim earnings, earnings-update timing, A+H share-capital conversion and the RMB/HKD exchange rate. Based on a share price of approximately HKD 1,161–1,173, P/E calculated using actual 2025 earnings is approximately 100x. If institutional EPS forecasts for 2026–2028 are used and converted from RMB into HKD, forward P/E would decline materially, provided the high-growth forecasts are achieved. Current valuation already incorporates high expectations for continued volume growth in 800G, 1.6T, silicon photonics and subsequent higher-speed products. Key risks include slower AI data-center capital expenditure, slower-than-expected 1.6T ramp-up, product-price declines, customer concentration and increased industry supply leading to price competition.

4. Recent News and Announcements

4.1 Share Repurchases Continue: Cumulative A-Share Repurchases Reached 2,926,917 Shares as of September 10

Zhongji Innolight launched the previously announced share-repurchase plan on September 1, 2026. Repurchases were conducted on the Shenzhen Stock Exchange and involved A shares, which are temporarily held as treasury shares and have not been cancelled. As of September 10, the company had conducted repurchases for seven consecutive trading days, acquiring a cumulative 2,926,917 A shares, approximately 0.26% of total share capital, for total consideration of approximately RMB 2.522 billion. Daily repurchases were as follows: on September 1, 374,100 shares at RMB 838.16–870.00 per share, for approximately RMB 318.4 million; on September 2, 358,400 shares at RMB 818.04–829.36 per share, for approximately RMB 295.0 million; on September 3, 233,100 shares at RMB 806.93–819.00 per share, for approximately RMB 190.0 million; on September 4, 619,600 shares at RMB 815.68–832.00 per share, for approximately RMB 510.0 million; on September 8, 436,500 shares at RMB 898.00–918.00 per share, for approximately RMB 395.0 million; on September 9, 239,022 shares at RMB 903.51–913.59 per share, for approximately RMB 217.0 million; and on September 10, 666,195 shares at RMB 889.08–904.36 per share, for approximately RMB 597.0 million. The repurchase plan is for not less than RMB 4.0 billion and not more than RMB 8.0 billion, with a maximum repurchase price of RMB 1,200 per share. The shares are intended for an equity-incentive plan or employee share-ownership plan, funded by the company’s own funds or self-raised funds. Since the repurchased shares are mainly held as treasury shares, their short-term EPS accretion is limited. The principal purposes are to stabilize market expectations and support subsequent equity incentives or employee share ownership. Related next-day share-movement reports were also disclosed through HKEXnews. No repurchases occurred in the Hong Kong H-share market itself.

4.2 2026 Interim Report: Revenue and Profit Attributable to the Parent Maintained Rapid Growth

On September 11, 2026, the Hong Kong Stock Exchange disclosed Zhongji Innolight’s interim report for the six months ended June 30, 2026. The data were unaudited. Revenue for the period was RMB 41.777862 billion, compared with RMB 14.789075 billion in the same period of 2025, representing growth of approximately 182.5%. Profit attributable to owners of the company was RMB 13.651150 billion, compared with RMB 3.995115 billion in the same period of 2025, representing growth of approximately 241.7%. Total profit for the period was RMB 14.733426 billion, of which RMB 13.651150 billion was attributable to owners of the company and RMB 1.082276 billion to non-controlling interests. Basic EPS was RMB 12.31, compared with RMB 3.64 in the same period of 2025; diluted EPS was RMB 12.19, compared with RMB 3.60. The company stated that performance growth was mainly driven by major customers’ increased investment in AI infrastructure and rising demand for high-speed optical modules such as 800G and 1.6T.

4.3 Revenue Mix by Business and Region: Optical Modules and Overseas Operations Account for High Proportions

In the first half of 2026, optical-module revenue was RMB 41.355212 billion, approximately 99.0% of total revenue, while revenue from other businesses was RMB 422.650 million, approximately 1.0%. By region, mainland China revenue was RMB 2.163201 billion, approximately 5.2% of total revenue, while revenue from outside mainland China and other countries was RMB 39.614661 billion, approximately 94.8%. In its interim report, the company stated that it ranked first globally by optical-interconnect solutions market revenue for five consecutive years from 2021 to 2025. However, this ranking was based on data from CIC and cited by the company, rather than an independent regulatory determination in the latest HKEX announcement. The business is highly concentrated in optical modules and has a high overseas-revenue proportion, leaving future performance exposed to AI data-center capital expenditure, product cycles, supply chains, overseas trade policies and exchange-rate fluctuations.

4.4 Actual Controller Pledges an Additional 728,000 Shares

On September 2, 2026, the company disclosed that actual controller Wang Weixiu had recently pledged a total of 728,000 shares, primarily to repay debt. Of these, 553,000 shares were pledged on August 31, 2026, until August 31, 2027, and 175,000 shares were pledged on September 1, 2026, until August 3, 2027. The pledged shares represented approximately 1.04% of Wang Weixiu’s holdings and approximately 0.06% of the company’s total share capital. As of September 1, 2026, Wang Weixiu and parties acting in concert held approximately 193.34 million shares, or approximately 16.41% of total share capital; cumulative pledged shares were approximately 6.678 million, or approximately 0.57% of total share capital.

4.5 Actual Controller and Controlling Shareholder Partially Release Pledges

On September 4, 2026, the company disclosed that Wang Weixiu released the pledge on 1.35 million shares on September 3, representing approximately 1.94% of his holdings and approximately 0.11% of total share capital. As of the relevant announcement date, Wang Weixiu and parties acting in concert had pledged approximately 5.328 million shares, or approximately 0.45% of their combined holdings. On September 8, the company disclosed that controlling shareholder Shandong Zhongji Investment Holding Co., Ltd. released the pledge on 2.00 million shares on September 7, representing approximately 1.65% of its holdings and approximately 0.17% of total share capital. As of the announcement date, Zhongji Holdings and parties acting in concert held approximately 193.34 million shares, or approximately 16.41% of total share capital; cumulative pledged shares were approximately 3.328 million, or approximately 1.72% of their combined holdings and approximately 0.28% of total share capital.

4.6 Specific Shareholder Suzhou Yixingfu Adds and Releases Pledges

On September 8, 2026, the company disclosed that specific shareholder Suzhou Yixingfu Enterprise Management Center (Limited Partnership) had newly pledged a total of 1.048 million shares and released a pledge on 200,000 shares. Of the new pledges, 700,000 shares were pledged to CITIC Securities from September 7, 2026 to September 7, 2028, for debt repayment, and 348,000 shares were pledged to Huatai Securities from September 8, 2026 to September 8, 2027, for equity investment. As of the relevant announcement date, Yixingfu and parties acting in concert held approximately 95.412 million shares, or approximately 8.10% of total share capital; cumulative pledged shares were approximately 12.432 million, or approximately 13.03% of their combined holdings and approximately 1.06% of total share capital.

4.7 Financial Assistance of up to RMB 51 Million to a Controlling Subsidiary

On September 4, 2026, the company disclosed that it intended to provide up to RMB 51 million in financial assistance to controlling subsidiary Guangdong Shendu Zhileng Technology Co., Ltd. at an annual interest rate of 2.70% for a 12-month term. The funds, sourced from the company’s own funds or self-raised funds, will be used for Shendu Zhileng’s operations and may not be diverted. Principal and interest will be repaid in a lump sum at maturity. Shendu Zhileng has registered capital of RMB 100 million; the company holds a 51% stake and includes it in its consolidated financial statements. The amount is small relative to the company’s overall assets and operating scale and mainly represents operational funding support for a subsidiary.

4.8 Interim Dividend Enters Ex-Dividend and Record-Date Stage

Although the interim-dividend announcement was published on August 21, 2026, the relevant ex-dividend and record-date arrangements occurred in September. The interim dividend was RMB 12 per 10 shares, equivalent to HKD 13.8766 per 10 shares for Hong Kong shareholders, using an exchange rate of RMB 1.00 to HKD 1.15639. The ex-dividend date was September 3, 2026, the record date was September 10, 2026, and the payment date is October 9, 2026.

4.9 Other Announcement Review and Overall Assessment

As of September 13, 2026, the research notes found no new major mergers and acquisitions, asset restructurings or share issuances for acquisitions in the September HKEXnews disclosures or company announcements. No new earnings warning, earnings downgrade or profit-warning announcement was identified, and no major company-level regulatory penalty or suspension was found. Recent announcements mainly concerned A-share repurchases, the 2026 interim report, shareholder pledges and releases, financial assistance to a controlling subsidiary and the interim-dividend record-date arrangements. Overall, as of September 13, 2026, the news flow for 03308 Zhongji Innolight was moderately positive. The principal catalysts were the approximately RMB 2.522 billion in cumulative repurchases as of September 10 and first-half 2026 revenue growth of approximately 182.5% and profit attributable to owners of the company growth of approximately 241.7%. Potential risks include uncertainty surrounding AI data-center capital expenditure and the ramp-up of 1.6T optical modules, heavy concentration in optical modules, an overseas-revenue proportion of approximately 94.8%, overseas customer and trade-policy risks, new shareholder pledges and the possibility of subsequent audit adjustments because the interim report was unaudited.

5. Share-Price Performance and Technical Analysis

5.1 Price Overview

5.2 Technical Indicators

03308 was listed in Hong Kong on July 30, 2026. With a historical trading sample of less than two months, the stability of its technical indicators is lower than that of stocks with several years of trading history. The closing price on September 11, 2026 was HKD 1,170.00, back above MA5, MA10 and MA20 and above the Bollinger middle band, indicating strong short-term technical momentum. However, RSI was approximately 67, the share price had not broken through the HKD 1,203–1,239 resistance zone, and the stock had experienced sharp rises and falls since listing. A new one-way uptrend therefore cannot yet be confirmed. Turnover rose from approximately HKD 1.836–2.412 billion from September 8 to September 10 to approximately HKD 3.787 billion on September 11, while short-selling turnover declined from approximately 16%–18% to approximately 4.34%. This indicates improved short-term sentiment during the rebound, although capital rotation remained intense. Hong Kong does not have an official “net inflow of main funds” indicator directly comparable with that of the A-share market. Turnover, southbound holdings, short-selling ratios and price-volume relationships should be considered together. Data on the 52-week low and P/E differ among platforms and should be further verified using formal market-data terminals.

5.3 Short-Term Outlook (Next Week, Scenario Analysis for Reference Only)

⚠️ Risk warning: The following is a subjective technical scenario analysis based on closing data as of September 11, 2026. It does not constitute investment advice or a single-point price forecast.

① Key Technical Levels

② Scenarios for the Next Week (Subjective Weights, Not Statistical Probabilities)

• Range-bound consolidation (relatively high weight, approximately 50%–60%; a subjective heuristic weight based on the current technical pattern, turnover and short-selling data, not a statistical probability): observation range of approximately HKD 1,110–1,240. Conditions include the share price holding HKD 1,110–1,160 but failing to sustain a break above HKD 1,240, daily turnover generally remaining at HKD 1.8–3.0 billion, and no clear one-way trend in the AI and optical-communications sectors. In this scenario, the share price may fluctuate repeatedly above MA5, MA10 and the Bollinger middle band. This would represent high-volatility consolidation rather than a confirmed one-way uptrend.
• Weak downside move (medium weight, approximately 20%–30%; subjective heuristic weight, not a statistical probability): observation range of approximately HKD 1,000–1,110. Conditions include a close below HKD 1,110, rising turnover accompanied by a lower closing price, short-selling turnover returning to approximately 15% or higher, simultaneous weakness in optical communications and AI hardware, or consecutive reductions in southbound funds and Stock Connect holdings. A further break below the HKD 1,000–1,050 strong-support zone could weaken the technical structure and increase the risk of a retracement toward HKD 925–980.
• Stronger rebound (low-to-medium weight, approximately 20%; subjective heuristic weight, not a statistical probability): observation range of approximately HKD 1,240–1,320. Conditions include an effective closing-price break above HKD 1,240, daily turnover rising continuously to approximately HKD 3.5 billion or above, no material increase in the short-selling ratio during price gains, simultaneous strength in optical communications and AI hardware, and the ability to hold above HKD 1,200 in subsequent sessions rather than retreating after an intraday spike. If these conditions are met, the Bollinger upper band near HKD 1,259 and the post-listing high of HKD 1,319 can be monitored. However, HKD 1,319 is a strong resistance area, and a single volume-backed rise cannot by itself confirm a breakout.

③ Capital and Liquidity Background

On September 11, 2026, trading volume was approximately 3.255 million shares. Based on approximately 62.675 million H shares, the H-share turnover ratio was approximately 5.19%; based on approximately 1.1779 billion total shares issued, the overall turnover ratio was approximately 0.28%. The denominators differ. Recent turnover was approximately HKD 1.8–4.5 billion, including approximately HKD 3.787 billion on September 11, indicating higher liquidity than ordinary small-cap Hong Kong stocks. However, given the high absolute share price and wide intraday range, bid-ask jumps and market-impact costs may remain significant. Shareholding data are mainly from the early post-listing period and disclosures in August 2026: Shandong Zhongji Investment Holding Co., Ltd. held approximately 10.38% of total share capital; Wang Weixiu directly held approximately 5.96%; Suzhou Yixingfu Enterprise Management Center held approximately 3.99%; and Suzhou Yunchangjin Enterprise Management Center held approximately 2.04%. Wang Weixiu and connected persons jointly held approximately 16.34% of the A shares, while Liu Sheng and connected persons jointly held approximately 6.34% of the A shares. Aspex Management disclosed on August 10, 2026 that it held approximately 3.8679 million H shares, or approximately 7.09% of H shares. Public information currently indicates a shareholder structure comprising controlling shareholders and management, H-share cornerstone or institutional investors, southbound funds and broker-custodied accounts. There is not yet a sufficiently long quarterly observation series for the top 10 Hong Kong shareholders, and some institutional holdings data are lagged, so they cannot fully represent real-time holdings as of September 11, 2026. A specific volume signal to monitor is that a break above HKD 1,240 accompanied by daily turnover of approximately HKD 3.5 billion or more for at least one trading day, with the closing price not falling materially below HKD 1,200, could confirm stronger short-term capital participation. If turnover rises but the closing price falls back below HKD 1,200, the move would more closely resemble profit-taking or greater divergence than a clear breakout.

Volume confirmation signal: if a break above HKD 1,240 is accompanied by daily turnover of approximately HKD 3.5 billion or more and the closing price does not fall materially below HKD 1,200, capital participation may be regarded as strengthening. If the closing price falls back below HKD 1,200 after turnover expands, attention should be paid to profit-taking or widening divergence.

④ Points to Monitor (Observation Framework Only, Not Trading Instructions)

• Observe whether the HKD 1,200–1,240 resistance zone can be decisively broken on a closing-price basis, and assess price-volume coordination by reference to whether turnover reaches approximately HKD 3.5 billion or more; this is an observation framework, not a trading instruction.
• Observe whether the HKD 1,110–1,160 area can provide short-term support, and whether the stock tests MA20 near HKD 1,092 and the area near HKD 1,050 after losing HKD 1,110; this is an observation framework, not a trading instruction.
• If HKD 1,000–1,050 is broken, observe the possibility of a retracement toward HKD 925–980; this is an observation framework, not a trading instruction.
• Monitor whether the short-selling ratio declines as turnover increases, as well as changes in the optical-communications and AI-hardware sectors and in southbound holdings; this is an observation framework, not a trading instruction.

The above scenario analysis is based on the September 11, 2026 closing data and historical price and technical-indicator calculations. Short-term share prices will also be affected by news flow, capital flows, broader market conditions and other factors. Technical indicators themselves have lagging characteristics and limitations. This analysis does not guarantee future performance and does not constitute a buying or selling recommendation. Investors should independently assess the latest market information and bear their own investment risks.

6. Industry Landscape and Competitor Analysis

6.1 Industry Overview

The optical-module industry sits in the middle of the AI-computing infrastructure and data-center networking-equipment value chain. Upstream products include optical chips, electronic chips, DSPs, wafers, optical devices and structural components; midstream products include optical modules, optical engines and optical-interconnect solutions; downstream customers include cloud-service providers, AI-computing service providers, server and switch manufacturers, telecom-equipment manufacturers and data-center operators. Industry growth is driven mainly by the expansion of AI training and inference clusters, data-center switch upgrades from 400G to 800G and 1.6T, increased bandwidth requirements for GPU-cluster interconnection, higher cloud-service-provider data-center capital expenditure, and technological upgrades such as silicon photonics, LPO and CPO.

6.2 Competitive Landscape

• According to CIC data cited in the company’s prospectus, Zhongji Innolight ranked first globally by optical-interconnect solutions market revenue for five consecutive years from 2021. Its 2025 share was approximately 21.2% of the overall optical-interconnect solutions market and approximately 28.1% of the high-speed datacom optical-interconnect solutions market.
• The above market shares are affected by statistical scope and methodology, including whether telecom modules are included, whether only optical modules are counted, and whether the basis is revenue or shipment volume. They should not be compared directly with data from other institutions.
• LightCounting disclosed that global optical-transceiver sales reached approximately US$23.8 billion in 2025, up 55% year on year. It identified Zhongji Innolight, Eoptolink, Coherent, Lumentum, Hisense Broadband and other companies as major global optical-module suppliers.
• Competition is becoming increasingly concentrated among leading companies, mainly because high-speed product R&D and validation cycles are lengthy, cloud-provider customer-certification thresholds are high, 800G and 1.6T products require strong mass-production testing and yield capabilities, and supplies of high-end optical chips, DSPs and certain key components are constrained.
• Overseas delivery, export compliance and multi-region manufacturing capabilities are gradually becoming prerequisites for securing orders. Zhongji Innolight has deployed capacity in mainland China, Taiwan and Thailand to strengthen overseas delivery, supply-chain resilience and its ability to respond to trade policies.
• The industry remains exposed to cyclical and technology-iteration risks. Prices and technology routes for 800G and 1.6T products may change, while CPO, NPO and LPO solutions could alter value allocation in traditional pluggable optical modules. Cloud-service providers’ supply-chain diversification could also weaken the long-term share of any single supplier.

6.3 Major Competitors

Zhongji Innolight’s core differentiation lies in the scaled production of high-speed pluggable optical modules and its global cloud-customer certification and delivery capabilities. Current revenue and profit are highly concentrated in datacom products such as 400G, 800G and 1.6T. Eoptolink competes directly in high-speed datacom optical modules; Coherent and Lumentum have deeper vertical integration in lasers, optical chips and optical devices; Accelink has a more complete industrial chain and a stronger domestic telecom base; and Hisense Broadband has scaled manufacturing and overseas customers but relatively weaker influence in high-end AI datacom products. Since business scopes and market-share methodologies differ, companies cannot be compared directly based solely on total revenue or a single market-share figure.

7. Risk Factors

• AI data-center capital expenditure and demand from major customers are uncertain. The company’s first-half 2026 growth was mainly driven by increased AI-infrastructure investment by major customers. If customer capital expenditure slows, projects are delayed or procurement schedules change, shipments and revenue growth of 800G and 1.6T products could be directly affected.
• Product mix and technology-iteration risks are significant. Revenue and profit are highly dependent on 400G, 800G and 1.6T high-speed datacom optical modules. If the 1.6T ramp-up falls short of expectations, or if LPO, LRO, silicon photonics, CPO or NPO alter value allocation in traditional pluggable modules, existing product competitiveness and gross margins could come under pressure.
• Customer concentration is high. Sales to the five largest customers in 2025 were approximately RMB 29.056 billion, or 75.98% of annual sales, while the largest customer accounted for 24.06%. Customers are identified as Customers A through E, and their specific identities cannot be confirmed from the available data alone. Large cloud-service providers may lower prices or adjust the company’s share through annual price reductions, supplier bidding, product iteration and multi-supplier strategies.
• Supplier concentration and supplies of key components may constrain delivery. Procurement from the five largest suppliers in 2025 was approximately RMB 12.797 billion, or 51.50% of total procurement, while the largest supplier accounted for 35.76%. Some optical devices, optical chips, DSPs and other key raw materials are sourced overseas. The company has some price-taker characteristics when high-end components are in short supply. Supply disruptions or price increases could raise costs and affect capacity utilization.
• Overseas operations and trade-policy risks are significant. Revenue from outside mainland China in the first half of 2026 was approximately RMB 39.615 billion, or approximately 94.8% of total revenue; overseas revenue accounted for approximately 90.6% in 2025. Overseas customers, export compliance, tariffs and trade-policy changes, as well as delivery arrangements among capacity in mainland China, Taiwan and Thailand, may affect order acquisition, production costs and profitability.
• Valuation is highly sensitive to achievement of high growth. As of September 11, 2026, the share price was HKD 1,170.00, with P/E of approximately 100x based on 2025 actual earnings. Platform-displayed P/E figures of approximately 56–57x, approximately 102–103x and approximately 106.1x differ by calculation basis. If future revenue, profit or 1.6T growth falls short of institutional forecasts, valuation re-rating could amplify share-price volatility.
• The Hong Kong listing is recent and share-price volatility is high. The company was listed on July 30, 2026; the post-listing high was HKD 1,319.00, while low-point data range from approximately HKD 880.00 to HKD 980.00. As of September 11, 2026, the share price had not broken through the HKD 1,203–1,239 resistance zone. Technical indicators remain unstable, and a short-term rebound alone cannot confirm sustained upside.
• Certain shareholders have recently pledged shares. Actual controller Wang Weixiu recently pledged an additional 728,000 shares, while specific shareholder Suzhou Yixingfu newly pledged a total of 1.048 million shares and released a pledge on 200,000 shares. Although existing pledge ratios are limited relative to their holdings and total share capital, the liquidity and market-sentiment impact of pledges should still be monitored if the share price fluctuates sharply.
• The first-half 2026 interim-report data are unaudited, and subsequent formal audits or disclosure methodologies may result in adjustments. At the same time, net cash flow from operating activities in the first half of 2026 was approximately RMB 1.800 billion, materially below profit attributable to owners of the company of RMB 13.651 billion. Although cash flow still increased 44.08% year on year, the impact of rapid revenue growth on inventories, accounts receivable and working capital should continue to be monitored.

8. Conclusion and Outlook

The company’s growth thesis is relatively concentrated and clear: expansion of AI training and inference clusters is increasing data-center interconnection bandwidth requirements; the upgrade from 400G and 800G to 1.6T is improving product mix; and the company is securing orders through its R&D, certification, mass-production and global-delivery capabilities in high-speed pluggable optical modules. Performance growth accelerated significantly in the first half of 2026, while optical-module revenue accounted for approximately 99.0% of total revenue, indicating that demand for high-end datacom products remains the core operating driver. Approximately 35% of Hong Kong IPO proceeds is allocated to optical-interconnect product R&D and approximately 30% to global capacity expansion, supporting technology iteration and overseas delivery capabilities. However, whether these investments can translate into sustainable revenue and profit requires validation through subsequent operating data.

Current earnings quality is supported to some extent by cash-flow and collection data: net cash flow from operating activities in 2025 was approximately RMB 10.896 billion, close to profit attributable to the parent of RMB 10.797 billion, while the disclosed collection rate for overseas optical-communications transceiver-module sales was 98%. Nevertheless, the company also has two-way upstream and downstream concentration: the five largest suppliers accounted for 51.50% of procurement and the five largest customers accounted for 75.98% of sales in 2025. Customer and supplier names were anonymized. The sustainability of future performance will depend on major customers’ AI capital expenditure, demand for 800G and 1.6T products, product pricing, supply-chain security and utilization of the company’s global capacity.

From a Hong Kong trading perspective, 03308 is currently in the high-volatility early stage following its listing. HKD 1,200–1,240 is an important short-term resistance zone, while HKD 1,110–1,160 and HKD 1,000–1,050 can serve as observation support zones. However, technical patterns cannot replace fundamental verification. Institutional forecasts for 2026–2028 profit attributable to the parent vary materially: Goldman Sachs forecasts RMB 40.432 billion, RMB 86.903 billion and RMB 137.110 billion, respectively, while Nomura forecasts RMB 35.844 billion, RMB 76.341 billion and RMB 114.172 billion. This shows that forward valuation is highly sensitive to earnings delivery. Key items to monitor include high-end product shipments and gross margins, customer capital expenditure, overseas trade policies, changes in customer and supplier concentration, and subsequent audit or formal disclosure of the interim report.

Data Sources

• Stock Code: 300308　　Stock Abbreviation: Zhongji Innolight　　Announcement No.: 2026-084
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• Goldman Sachs: Zhongji Innolight H-share Target Price HKD 3,267
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• Stock Code: 300308　　Stock Abbreviation: Zhongji Innolight　　Announcement No.: 2026-085
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This report was automatically retrieved, compiled and generated by AI based on publicly available information. The information is current as of the Hong Kong market close on September 11, 2026; all prices and amounts are denominated in Hong Kong dollars (HKD). 03308 was listed on the Main Board of Hong Kong on July 30, 2026, at an offer price of HKD 980.00. Information may differ in timeliness; specific data should be verified against the company’s official announcements and authoritative data terminals. This report is for information and research reference only and does not constitute investment advice. Investors should make independent judgments and bear their own investment risks.