Accelink Technologies (002281.SZ) — In-Depth Research Note (Abridged)

Vertically integrated optical chips; positioned for domestic AI compute growth

Source: Guosen Securities | Date: December 29, 2025 | Rating: Outperform (maintain)

Key Data Snapshot

Earnings forecast

Company overview

Profile

Accelink is a leading domestic optical communications company, focused on optical access / datacom and optical transport, under China Information Communication Technologies Group (CICT) (central SOE).

Core capabilities:

• Vertical integration from chips, components, modules to subsystems
• 4th globally in optical components
• Strong share in transport, access, and datacom

History

1976 → Ministry of Posts & Telecommunications solid-state device research institute founded\n2001 → Reorganized as a company\n2009 → Listed on SZSE (first listed optoelectronics device company in China)\n2012 → Acquired Wuhan Telecommunication Devices (WTD)\n2013 → Acquired Denmark IPX (passive optical chips)\n2016 → Acquired France Almae (high-end active chips)

Business mix (2024)

2025 Q3 highlight: Net profit to parent RMB 347 million, +35.42% YoY, +56.00% QoQ — a record high.

Industry: AI compute drives optical communications

1. Global AI compute investment

Overseas hyperscaler capex:

• 2025: Google, Microsoft, Amazon, Meta combined > USD 370 billion, +60% YoY

Domestic CSP capex:

• 2025: ByteDance, Tencent, Alibaba, Baidu combined > RMB 360 billion
• Alibaba Q1 capex +126.7% YoY; Tencent +91% YoY

2. From “East Data, West Computing” to “millisecond compute”

• East Data, West Computing: 8 hub nodes + 10 national DC clusters
• Millisecond compute (MIIT action plan, Oct 2025):
• Millisecond interconnect among compute centers
• Millisecond access to compute resources
• Millisecond reach for applications

Market: Ciena forecasts global optical transport USD 14 billion by 2028

3. Optical module landscape

2024 global optical module TOP10: China holds 7 seats

Accelink: 18 consecutive years in “China’s Top 10 Most Competitive Optical Device Enterprises.”

Competitive strengths

1. Optical chip vertical integration

In-house supply rates:

• Below 25G: 90%
• 25G: 70%
• 50G VCSEL: qualified, small-batch
• 100G/200G: ramping

2. Frontier technology

CPO (co-packaged optics)

• Power reduction 25%–30%
• Optical engine, shuffle box, ELSFP positioned
• 2023: pluggable CPO ELSFP light source module

OCS (optical circuit switching)

• ~1000× lower latency vs. electrical switching
• Much lower energy
• 2024 OFC: MEMS-based OCS demo

3. Capacity expansion

Financial analysis

Revenue & profit

Profitability

vs. peers (2024)

Margin gap: fiercer domestic competition; overseas customers pay higher premiums.

Investment logic (detailed)

I. Domestic leader; solid share

• Omdia: 5.3% global optical device share, 5th; datacom 5th (4.7%), telecom 6th (5.7%), access 3rd (8.2%)
• 18 years in China’s top-10 optical device ranking
• Domestic top-10 modules: 7 Chinese firms; Accelink in the first tier
• vs. InnoLight/Eoptolink (overseas CSP–weighted), Accelink >70% revenue domestic
• Diversified customers: three operators + leading internet firms; low single-customer risk
• 600+ authorized patents (>40% invention); >35% commercialization rate
• Three smart plants; capacity flex ~1.5× normal

II. AI drives high-speed modules; Accelink a beneficiary

• 2025 overseas hyperscalers > USD 370 billion capex (+60%)
• Domestic top CSPs > RMB 360 billion; Alibaba Q1 +126.7%, Tencent +91%
• LightCounting: 2024–2029 global optical module CAGR 22%; 2029 market > USD 37 billion

Product roadmap:

• 400G: volume shipment, main product
• 800G: orders received, ramping
• 1.6T: in development; RMB 3.5 bn raise targets 1.6T capacity

Mix & margin: faster products lift gross margin; 2025H1 datacom & access gross margin +7.13 ppt to 19.96%; further upside as 800G/1.6T scale

Policy: “East Data, West Computing” + “millisecond compute” drive DCI and metro upgrades

III. Chip self-sufficiency; vertical moat

• 25G: ~70% in-house; 50G VCSEL small batch; 100G/200G in progress
• Six core process platforms: epitaxy, optical design, packaging, HF simulation, etc.
• SOE backing (CICT) in domestic compute supply chain

IV. CPO / OCS for next-gen interconnect

CPO: optical engine near switch ASIC; 25–30% power saving; LightCounting: 50.6% 3.2T CPO penetration by 2029; Accelink: ELSFP 2023, engine + shuffle + ELSFP for 3.2T

OCS: all-optical path; ~1000× faster than electrical; large DC power savings in tests; Cignal AI: USD 2.5 billion OCS market by 2029; Accelink MEMS OCS at OFC 2024, up to 400×400

Strategic: early positioning vs. Cisco co-launch on 1.6T silicon photonics module

V. Capacity to capture AI demand

Hubei bonded zone plant built; overseas manufacturing to mitigate trade risk; elastic capacity for domestic compute orders

VI. Customer mix & overseas growth

• ~75% domestic; operators + ByteDance, Tencent, Alibaba, Baidu; 400G/800G ramping
• ~25% overseas (Americas, Europe, India, Korea, Japan); Cisco 1.6T OSFP-XD silicon photonics
• vs. InnoLight/Eoptolink (>70% overseas), Accelink has room to grow abroad; overseas CSPs typically higher margin

VII. Valuation

• Price RMB 69.60 → ~37× 2026E P/E
• Peers 2026E: InnoLight ~28×, Eoptolink ~35×, HGTECH ~36×
• Trimmed sector mean ~56× — Accelink below mean

Growth: 2025E NP +60.3% YoY; 2026E +42.2%; 2027E +22.8%

Fair value: FCFF RMB 64.37–81.84; relative P/E 40–45× → RMB 74.78–84.12; combined RMB 74.78–81.84 (7–18% upside)

Rating: Maintain Outperform

Risks

Summary

1. Domestic optical leader: global #4 devices; strong vertical integration
2. AI compute tailwind: domestic CSP capex; 400G/800G/1.6T ramp
3. Chip control: <25G ~90% in-house; SOE benefits domestic substitution
4. Technology: leading CPO/OCS positioning
5. Capacity: RMB 3.5 bn raise for datacenter high-speed modules
6. Valuation: 2026E ~37× vs. sector mean; fair value RMB 74.78–81.84

Disclaimer: Content sourced from Guosen Securities; for study only, not investment advice.