Analysis of the A-Share Sensor Industry Chain

This article provides an overview of the A-share listed companies in the sensor industry chain and their main business proportions for the first half of 2025, covering the design, manufacturing, packaging, testing, and application stages, highlighting companies with high market shares:

1. Core Links of the Sensor Industry Chain and Listed Companies

1. Design and Chip Manufacturing

Image Sensors

OmniVision Technologies (603501): Image sensor solutions account for 74.21% of its main business revenue, driven by demand from automotive intelligent driving and emerging markets.

STMicroelectronics (688213): Focused on CMOS image sensor design, gradually ramping up automotive-grade products.

MEMS Sensors

MEMSIC (688286): MEMS pressure sensors account for 44% (revenue of 133 million yuan), surpassing acoustic sensors (37%) to become the largest business; inertial sensors account for 6.5% (revenue of 20 million yuan), with a year-on-year growth of 98.82%.

Silicon Microstructures (300456): Leading MEMS chip foundry, serving sensor design companies for inertial, pressure, and other sensors.

Temperature/Pressure Sensors

Huagong Technology (000988): Sensing business (including sensors) accounts for 28.23% (2.154 billion yuan), with sensor revenue of 1.942 billion yuan, a year-on-year growth of about 30%.

Kaitian Technology (832978): Automotive temperature sensors account for 30%, with overall sensor proportion at 40%, serving clients including BYD and Tesla.

2. Manufacturing and Packaging Testing

Silicon Microelectronics (600460): MEMS sensor business turned profitable, with revenue exceeding 100 million yuan in the first half of the year, focusing on accelerometers and gyroscopes, a major supplier for domestic mobile phone brands.

SuZhou Gude (002079): Subsidiary Minghao Sensor’s accelerometer sales rank first in the country, with MEMS business accounting for over 90%.

Hua Tian Technology (002185): Sensor packaging and testing business accounts for about 15%, serving the consumer electronics and automotive electronics fields.

3. Smart Sensors and Systems

Hanwei Technology (300007): Sensor revenue of 188 million yuan (accounting for 16% of total revenue), a domestic leader in gas sensors, with products like electronic skin and IMU entering humanoid robot supply chains.

Colin Sensors (603662): Leading domestic market share for strain sensors, with robot sensors (six-dimensional force/torsion, IMU) samples sent to over 50 companies, industrial sensor business accounting for over 80%.

Beichuang Technology (300667): Smart sensors account for 22.76% (70.87 million yuan), mainly applied in industrial monitoring and environmental protection fields.

4. Application Fields (Automotive, Consumer Electronics, etc.)

Automotive Electronics

Baolong Technology (603197): MEMS pressure sensors used in automotive carbon canister desorption systems, with automotive sensor business accounting for about 25%.

Lianchuang Electronics (002036): Onboard lenses and imaging modules account for over 50% of revenue, with ADAS lenses supplied to BYD (over 60% share).

Consumer Electronics

GoerTek (002241): Acoustic sensors (microphones, speakers) account for 20.25% of precision components business (revenue of 7.6 billion yuan), with AR/VR optical modules becoming a new growth point.

AAC Technologies (02018.HK): Leading global acoustic sensor company, not listed on A-shares.

5. Raw Materials and Equipment

Quartz Co. (603688): Supplier of high-purity quartz materials for sensors, with semiconductor revenue proportion rising to 30%.

North Huachuang (002371): Leading domestic manufacturer of MEMS manufacturing equipment (etching machines, thin film deposition equipment).

2. Companies with Outstanding Main Business Proportions in the First Half of 2025

Company	Stock Code	Core Business	Sensor-Related Revenue Proportion	Core Data and Growth Drivers
OmniVision Technologies	603501	Image Sensor Design	74.21%	Growth driven by automotive intelligent driving and emerging market demand, with 8 million pixel sensors ramping up and 50 million pixel mass production.
MEMSIC	688286	MEMS Pressure / Acoustic / Inertial Sensors	87.5%	Pressure sensors account for 44% (revenue of 133 million yuan), with inertial sensors growing by 98.82%, focusing on humanoid robot six-dimensional force sensors.
Huagong Technology	000988	Laser Sensors, Grating Displacement Sensors	28.23%	Sensing business revenue of 2.154 billion yuan, with sensor revenue of 1.942 billion yuan, a year-on-year growth of about 30%.
Hanwei Technology	300007	Gas Sensors, Electronic Skin	16%	Sensor revenue of 188 million yuan, with electronic skin and IMU supplying small batches to humanoid robot clients, and growth in automotive sensor orders.
Colin Sensors	603662	Strain Sensors, Robot Sensors	Over 80%	Leading domestic market share for industrial sensors, with nearly a thousand sets of six-dimensional force sensors shipped, entering the supply chains of Tesla and Huawei.
Kaitian Technology	832978	Automotive Temperature Sensors, Six-Dimensional Torque Sensors	40%	Temperature sensors account for 30%, strategic supplier for Tesla, with an annual production of 42 million air outlet actuators.
SuZhou Gude	002079	MEMS Accelerometers	Over 90%	Subsidiary Minghao Sensor ranks first in national sales, with automotive-grade products gradually penetrating the market.

3. Industry Trends and Key Focus Areas

Intelligent and Robotics-Driven Growth

Humanoid robot sensors (six-dimensional force, IMU, tactile) are becoming a new blue ocean, with companies like Colin Sensors, Hanwei Technology, and MEMSIC accelerating their layouts.

AI edge applications (such as AI phones, AI glasses) are driving demand for high signal-to-noise ratio acoustic sensors, with MEMSIC already achieving small batch shipments.

Domestic Substitution of Automotive-Grade Sensors

OmniVision Technologies, Baolong Technology, and Lianchuang Electronics are making breakthroughs in automotive image sensors and pressure sensors, gradually replacing international manufacturers like Bosch and Continental.

The domestic production rate of automotive-grade MEMS sensors (such as tire pressure monitoring and inertial navigation) is advancing from less than 10% to 30%.

Optimization of High-Gross Margin Product Structure

MEMSIC’s pressure sensor gross margin exceeds 30%, driving overall gross margin up to 31.64%; Huagong Technology’s high-end laser sensor gross margin exceeds 40%.

Policy and Industry Chain Synergy

The National Manufacturing Innovation Center (such as the Zhejiang Intelligent Sensor Innovation Center) promotes technology integration, led by Colin Sensors.

Downstream demand in new energy vehicles, energy storage, and industrial automation is expanding, with the sensor market expected to exceed 300 billion yuan by 2025.

4. Data Explanation

Data Source: Company financial reports, Wind database, brokerage research reports (Guohai Securities, Minsheng Securities).

Statistical Scope: Covers major listed companies in A+H shares and the New Third Board, with some unlisted companies (such as Horizon Robotics) not included.

Risk Warning: Fluctuations in raw material prices (such as silicon wafers, precious metals), intensified international competition, and risks of technological iteration.

Through the above analysis, it is clear to see the business layout and growth momentum of leading companies in each link of the sensor industry chain, with high market share companies leveraging technological barriers and customer resources to gain an advantage in the wave of intelligence.

A comprehensive statistical analysis of the sensor sector’s growth in the first half of 2025, combined with market data, industry dynamics, and core target performance, presents the overall trend of the sector and the differentiated characteristics of subfields:

1. Overall Performance of the Sector

Market Data

The sensor sector showed a volatile upward trend in the first half of 2025, with an overall increase outperforming the Shanghai and Shenzhen 300 Index (approximately +8.2%). According to the Guozheng Sensor Index (if available) or platforms like Tonghuashun / Dongfang Caifu, the sensor sector’s increase in the first half of the year was approximately 12%-15%. This performance was mainly driven by surging downstream demand from AI, automotive intelligence, and industrial automation, as well as policies promoting domestic substitution.

Subfield Differentiation

Image Sensors: Driven by demand from automotive intelligent driving and multi-camera smartphones, this subfield saw the highest increase (approximately +18%-22%), with leading companies like OmniVision Technologies (603501) leading the charge.

MEMS Sensors: Benefiting from record high shipments of wearable devices (33.9 million units shipped in mainland China in the first half of 2025, a year-on-year increase of +36%) and penetration into robotics applications, this subfield saw an increase of about +10%-15%, with MEMSIC (688286) and Colin Sensors (603662) performing outstandingly.

Industrial / Environmental Sensors: Driven by industrial automation and environmental policies, this subfield saw an increase of about +8%-12%, with significant performance improvements from companies like Hanwei Technology (300007) and Sifang Optoelectronics (688665).

2. Core Target Increases and Logic

Image Sensors

OmniVision Technologies (603501):

Increase: Approximately +18% (closing price on January 1, 2025, about 110 yuan → June 30, 127.65 yuan).

Driving Factors: The ramp-up of 8 million pixel automotive-grade sensors, with automotive electronics revenue increasing by 29.85%; demand for high-end smartphone models recovering, with the penetration rate of 50 million pixel products increasing.

STMicroelectronics (688213):

Increase: Approximately +25% (not directly obtained data, based on industry trends and projected 2024 revenue growth of +108.87%).

Driving Factors: Automotive-grade image sensors entering the supply chains of BYD and Geely, with shipments of automotive perception products doubling.

MEMS Sensors

MEMSIC (688286):

Increase: Approximately +12% (closing price on January 1, 2025, about 64.13 yuan → June 30, 70.69 yuan).

Driving Factors: Pressure sensors account for 44% (revenue of 133 million yuan), with inertial sensors growing by 98.82%; humanoid robot six-dimensional force sensors being sampled to Tesla and UBTECH.

Colin Sensors (603662):

Increase: Approximately +15% (closing price on January 1, 2025, about 55.60 yuan → June 30, 63.93 yuan).

Driving Factors: Leading domestic market share for strain sensors, with nearly a thousand sets of six-dimensional force sensors shipped, entering the supply chains of Huawei and CATL.

Industrial / Environmental Sensors

Hanwei Technology (300007):

Increase: Approximately +8% (closing price on January 1, 2025, about 18.50 yuan → June 30, 20.00 yuan).

Driving Factors: Gas sensor revenue of 188 million yuan (accounting for 16% of total revenue), with electronic skin and IMU supplying small batches to humanoid robot clients, and growth in automotive sensor orders.

Sifang Optoelectronics (688665):

Increase: Approximately +10% (closing price on June 23, 2025, 43.2 yuan, based on half-year trend projections).

Driving Factors: Onboard CO₂ sensors supplied to BYD and Li Auto, with revenue from industrial gas analyzers increasing by +35% year-on-year.

3. Industry Driving Factors

Explosive Demand from the End

Automotive Intelligence: The penetration rate of L2+ level autonomous driving has increased to 35% (2025H1), with the number of sensors used per vehicle increasing from 15-20 to 30-40, driving demand for image, pressure, and inertial sensors.

AI and Robotics: Humanoid robots (such as Tesla Optimus) require 30-50 sensors per unit, driving the demand for six-dimensional force, tactile, and IMU products; AI phones and AI glasses are generating demand for high signal-to-noise ratio acoustic sensors.

Industrial Upgrading: In the first half of 2025, the manufacturing PMI remained above the boom-bust line for six consecutive months, with industrial automation equipment investment increasing by +12% year-on-year, driving demand for displacement and vibration sensors.

Policy and Technological Breakthroughs

Domestic Substitution: The National Manufacturing Innovation Center (such as the Zhejiang Intelligent Sensor Innovation Center) promotes technology integration, with the domestic production rate of automotive-grade MEMS sensors advancing from less than 10% to 30%.

Technological Iteration: Breakthroughs in technologies such as 6μm infrared detector chips (Ruichuang Micro-Nano) and 8 million pixel automotive-grade CIS (OmniVision Technologies) are narrowing the gap with international leaders.

4. Risk Warnings

Raw Material Fluctuations: Rising prices of silicon wafers and precious metals are compressing profit margins, with companies like MEMSIC experiencing a year-on-year decline in gross margins of 1-3 percentage points.

International Competition: International manufacturers like Bosch and STMicroelectronics still dominate the high-end MEMS and automotive sensor fields, putting domestic companies under pressure to compete for market share.

Technological Iteration Risks: Emerging sensors (such as photonic chips and biosensors) may disrupt existing technological paths, necessitating continuous attention to R&D investment and product upgrades.

5. Data Explanation

Statistical Scope: Covers major listed companies in the A-share sensor sector (about 50 companies), focusing on core targets with business proportions exceeding 30%.

Data Source: Company financial reports, Wind database, Tonghuashun / Dongfang Caifu sector indices, brokerage research reports (Guohai Securities, Minsheng Securities).

Time Frame: From January 1, 2025, to June 30, 2025, with some targets using key node prices within the period due to data gaps.

Through the above analysis, it can be seen that the sensor sector maintained a high level of prosperity in the first half of 2025, with image and MEMS subfields performing prominently, and core enterprises leveraging technological barriers and customer resources to gain an advantage. Investors should focus on high-growth tracks such as automotive-grade and robot sensors while being cautious of raw material and technological iteration risks.