What THB Group does

THB Group (Tianhai Auto Electronics Group Co., Ltd., Shenzhen Stock Exchange: 001365) is a top-three Chinese automotive connector manufacturer and leading domestic automotive wire harness supplier, founded in 1969 and headquartered in Hebi, Henan Province. The company operates 27 R&D and production bases and 5 R&D centers across China with 20,000+ employees, producing more than 10,000 product varieties across five major categories. Its core technology portfolio spans high-voltage and low-voltage wire harnesses, high-speed data harnesses (FAKRA, HSD, automotive Ethernet), high-speed and high-voltage connectors, domain controllers, intelligent power distribution units (IDU, SEB), body controllers, UWB-based child presence detection systems, and in-vehicle optical communication. A recently articulated "dual-network" strategy pairs a Vehicle Intelligent Power Distribution System with a Vehicle Data Connectivity System to address 800V high-voltage platforms, Level 3 autonomous driving, and central zonal E/E architectures.

THB serves as a Tier 1 supplier to major Chinese automakers across both legacy and new-energy segments, including Changan (nearly 20-year partnership, QCA 2.0-certified), XPeng, Li Auto, NIO, Lotus, Zero Run, Chery, SAIC, and Geely. Revenue is generated primarily through B2B hardware sales (wire harnesses, connectors, and electronic control units) under quote-based OEM contracts, with the company reporting 2025 annual operating revenue exceeding RMB 15.9 billion (English-site disclosure cites RMB 12 billion for 2024). Distribution is exclusively direct sales to OEMs, supported by geographically distributed manufacturing to co-locate with customer facilities.

The company is a core listed platform under state-owned Guangzhou Industrial Investment Holding Group and completed its Shenzhen Stock Exchange Main Board IPO on May 18, 2026. Operating geographies span six Chinese regions (North, Northeast, East, Central, Southwest, South China), with customer concentrations in both traditional OEMs (Changan, Chery, SAIC, Geely) and NEV challengers. Recent strategic priorities include securing QCA certification, expanding dual-network technology, and developing lightweight aluminum wire harness alternatives to copper for next-generation EV platforms.

Name

THB Group

Legal name

天海汽车电子集团股份有限公司

Website

https://thb.com.cn

Company type

Public

Founded year

1969

Operating status

Ipo

Headcount range

51–100 employees

Short description

THB Group is a top-three Chinese automotive connector manufacturer and leading domestic wire harness supplier, founded in 1969, serving Tier 1 to OEMs including Changan, XPeng, Li Auto, NIO, Lotus, and Geely across 27 production bases in China with high/low-voltage harnesses, connectors, and intelligent electronic control products.

Ownership category

akta.pro rank

Product category

Automotive Electrical Components

NAICS

Motor Vehicle Electrical and Electronic Equipment Manufacturing (33632), Motor Vehicle Electrical and Electronic Equipment Manufacturing (336320)

SIC

Electronic Components, Nec (3679), Electronic Components & Accessories (3670)

akta.pro primary industry

Automotive E/E Architecture Components Manufacturing (Domain/Zonal Controllers, Gateways, Network Switches) (IMACAJAI)

akta.pro secondary industries

Automotive ECUs/Control Modules & Embedded Electronics Manufacturing (IMACAJAC), Automotive Infotainment, Telematics & Connectivity Hardware Manufacturing (TCU/V2X/GNSS) (IMACAJAH)

Keywords

• Automotive wire harnesses
• Automotive connectors
• Automotive electronics
• Vehicle electrical systems
• High voltage wire harnesses

Headquarters

HQ city

Hebi

HQ country

China

HQ region

Asia

Offices18 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Infrastructure

Revenue model

1. Automotive Wire Harnesses (High/Low Voltage): Design, development, and manufacturing of high-voltage and low-voltage wire harnesses for electric vehicles and traditional vehicles. Products include motor three-phase wire harnesses, battery pack wire harnesses, body wire harnesses, door wire harnesses, and high-voltage power distribution harnesses.
2. Automotive Connectors: Comprehensive connector product line covering low-voltage, high-voltage, high-speed, board-end, and special connectors. Products include housings, terminals, high-speed connectors, and rubber/plastic components.
3. Automotive Electronics (Intelligent Control): Electronic products including domain controllers, intelligent power distribution units (IDU), collision power modules (CPM), grid isolation modules (PNG), body controllers, lamp controllers, and wireless charging modules.

Go-to-market motion3 records

Distribution channels1 record

Marketing channels4 records

Core offering

THB Group designs, develops, and manufactures automotive electrical and electronic components for vehicle OEMs. Core offerings include high/low-voltage and high-speed wire harnesses, automotive connectors (low-voltage, high-voltage, high-speed, board-end), and intelligent automotive electronics such as domain controllers, intelligent power distribution units (IDU), and body controllers. The company supplies Tier 1 automotive OEMs in China across traditional fuel and new energy vehicle programs.

Product overview

THB Group is a comprehensive automotive electronic and electrical system supplier offering four core solution areas: Transmission System (high/low voltage wire harnesses and high-speed data harnesses), Connection System (connectors, terminals, and related components), Intelligent Control System (domain controllers, smart distribution units, lighting controllers), and Low-Carbon Mobility solutions. With over 50 years of industry experience since founding in 1969, THB operates 27 production bases and 5 R&D centers across China, producing more than 10,000 product varieties. The company's product portfolio centers on wire harness assemblies (including high-voltage, low-voltage, motor, battery, and signal harnesses), connector systems (high-speed, high-voltage, board-end, and inline connectors), and automotive electronics (domain controllers, IDU/SEB smart distribution units, light language controllers). THB serves major Chinese automakers including Changan, XPeng, Li Auto, NIO, and JAC, achieving 2025 annual revenue exceeding 159 billion RMB and successfully listing on the Shenzhen Stock Exchange in May 2026 (stock code: 001365).

Differentiator

Problem solved

Functional benefit

Products and services

• Transmission System (Electrical Transmission System)

Quantifiable outcome

• 2025 annual operating revenue exceeded 159 billion RMB
• +3 more outcomes

Named customers9 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability8 records

Feature6 records

Partnerships

Six partnerships are on record, tiered core and major.

• Changan Automobile (长安汽车)coreStrategic or Co-development PartnerNearly 20-year strategic partnership since 2008. Chongqing Tianhai is a QCA-certified supplier (Changan's highest supplier evaluation standard), supplying multiple vehicle models including NEV models. THB completed Changan's NEV wire harness project from R&D to mass production in just 4 months.
• XPeng Motors (小鹏汽车)coreStrategic or Co-development PartnerLong-term strategic partner deeply involved in XPeng's multi-model electronic and electrical system R&D and supply. Awarded 'Collaboration Excellence Award' at XPeng 2026 Global Partner Conference for stable product quality, efficient delivery, and collaborative innovation.
• Lotus/Lanyu Automobile (岚图汽车)majorStrategic or Co-development PartnerFive-year strategic partnership with Lotus/Lanyu Automobile (under Dongfeng Motor Group). Awarded 'Collaboration and Win-Win Award' for product quality and quality management capability at the 2025 Partner Conference.
• Tongji University (同济大学)majorStrategic or Co-development PartnerStrategic cooperation in technology research, talent development, and achievement transformation. Discussions include joint laboratory construction, internship base establishment, order-based training, and collaborative research projects. Tongji's School of Automotive and Transportation schools involved in cooperation.
• 8 Hebi-area Colleges and UniversitiesmajorStrategic or Co-development PartnerPartnership with 8 local colleges in Hebi including Hebi Vocational and Technical College and Hebi Technician College. Programs include '直播带岗' (live streaming recruitment), '工学交替' (work-study alternation), and '峻峰计划' and '季风计划' talent cultivation initiatives. In 2025, these partnerships delivered 734 students/workers to support production.
• Li Auto (理想汽车)coreStrategic or Co-development PartnerReceived Li Auto's '2025 Excellence in Quality Award', recognizing quality excellence and close collaborative partnership in new energy wire harness development.

Scale indicators10 records

Recent moves13 records

Expansion highlights6 records

Broad incumbents

• TE Connectivity: Global leader in automotive connectors and sensors with deep relationships across all major OEMs including Chinese NEV makers. Directly comparable as the dominant global automotive connector specialist THB competes against in China.
• Aptiv: Major automotive connector and electrical architecture supplier with strong high-voltage and high-speed connector portfolios. Comparable as a global Tier-1 competing for Chinese NEV E/E architecture programs.
• Yazaki: Largest wire harness manufacturer globally and a primary competitor in the automotive transmission system market. Comparable as the global wire harness incumbent THB emulates and competes with domestically.
• Lear Corporation: Global automotive seating and electrical systems supplier with significant wire harness and power distribution capabilities. Comparable as a multinational Tier-1 in the broader automotive E/E systems category.
• Sumitomo Electric: Major Japanese wire harness and automotive connector supplier with significant Chinese operations. Comparable as a multinational Tier-1 supplying connectors and harnesses to global OEMs with presence in Chinese NEV supply chains.

Direct peers

• Joyson Electronics (均胜电子): Major Chinese automotive electronics supplier including HMI, electronic control units, and active safety systems. Comparable as a Chinese Tier-1 competing for similar intelligent cockpit and E/E architecture slots at Chinese OEMs.
• Luxshare Precision (立讯精密): Leading Chinese connector and cable assembly manufacturer with growing automotive electronics exposure. Closely comparable as a domestic Chinese competitor scaling into automotive E/E components.
• Desay SV (德赛西威): Chinese automotive electronics specialist focused on domain controllers, cockpit electronics, and intelligent driving. Comparable as a domestic peer also pursuing the central zonal E/E architecture opportunity THB targets.
• Hirain Technologies (经纬恒润): Chinese automotive electronics company specializing in electronic control units, ADAS, and testing services. Comparable as a domestic peer addressing similar intelligent driving and E/E architecture demands from Chinese OEMs.

Regional players

• Motherson Sumi Wiring India: Large Indian wire harness manufacturer serving global OEMs with cost-competitive operations. Comparable as a wire harness pure-play targeting the same automotive electrification transition but operating in a different geography.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Subsidiaries21 records

Funding overview

Funding rounds1 record

Investors4 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about THB Group