Contact

China · Dongguan

  • Tel:+86 769-85420588
  • Fax:+86 769-85420988
  • E-mail:overseas@seso.cn
  • Site:www.SESO.cn
  • Add:No.1 Shangnan Road, Shangjiao Precinct, Chang'an

Think connectivity. Explore the future. SESO connects technology and life!


SESO is a leading provider of automotive-grade connectors and electrical connectivity solutions in China, as well as a unique precision manufacturing company.We are embracing the world with innovation and thinking about all possibilities.

We, Dongguan SESO Technology Co., Ltd. were established in 2008. The company’s headquarter is located in Dongguan, Guangdong Province, the existing Dongguan Chang’an and Wangniudun (under construction) two plants, with a total construction area of 93,000 square meters. The company has more than 600 employees, of which 40% of them are professional and technical talents in technology research and development, testing and quality. As of August 2024, SESO has obtained 135 patents, including 21 invention patents and 15 invention patents being published, making it a national high-tech enterprise driven by innovative R&D and precision manufacturing. At present, we have marketing and technical service teams in Kunshan, Chongqing, Shenzhen, Shanghai, Wuhan, Hefei, Changzhou, Ningbo, Changchun, Ningde, Changsha, Suzhou, Baoding, Frankfurt (Germany), etc., respectively. We provide customers with excellent connectivity products and precise solutions with the first-class quality that benchmarks international products with high quality, the pro-price of the Chinese brand, and the localized good service.


We have passed ISO9001 quality management system, IATF16949 automotive quality management system, ISO14001 environmental management system, ISO45001 occupational health and safety management system, ISO/IEC17025 testing and calibration laboratory competence accreditation, GB/T29490 intellectual property management system, and IECQ-QC080000 harmful material process management system certification. Our products have passed the certification of UL (E350787), LV214, USCAR-2, GMW3191, and domestic OEMs’ automotive product certification, and meet the environmental requirements of ROHS 2.0, REACH, halogen-free, California 65, POPs, and TSCA.


We also have an independent product R&D centre, engineering R&D centre, CNAS China Qualified Accredited Laboratory, with the ability to independently do the whole industrial chain closed-loop R&D, manufacturing and verification from product design, precision molds, automation equipment, visual inspection, testing and approval. With several professional business divisions such as stamping, injection molding, connector, connecting wire, etc., the company has achieved the goals of intelligent factory such as lean production according to order, whole process quality traceability, whole time data analysis, etc., and has the ability to stably supply products with high quality, short lead time, large volume and traceability. Meanwhile, we have an intelligent warehouse system with functions of automatic handling and searching, warehouse management, intelligent error-proofing, and automatic storage and retrieval, which realizes the perfect link from intelligent manufacturing to intelligent logistics.


The company’s product categories mainly include waterproof and non-waterproof connectors, precision hardware terminals, sheaths and some matching harnesses. Among them, the connectors include WTB, WTW, BTB, Board-IN, Card-Edge, FFC/FPC, Pin header, etc., with the product Pitch covering from 0.3~11.0mm, the current-carrying capacity of 1A~60A, and can be applied in the wide temperature zone of -55~+150℃ and in special environments. Precision hardware terminals have many types, including IDC, composite type, no-solder, puncture crimp, etc., which provide a variety of process options to enhance the customer’s automation level and reduce costs and increase efficiency.


Our company’s products are widely used in the field of automotive lighting vision system, body control system, intelligent cabin control system, new energy vehicle ‘three electric’ system and so on, as well as in wind and light storage of new energy, smart home, rail transport, industrial control, medical, communications and other consumer electronics. The end customers cover the domestic major brands of automobile enterprises and the world’s top ten lamp vision system enterprises, and products are exported to Europe, the United States, Japan, South Korea, Singapore and other more than 30 countries and regions. In segmented fields such as automotive headlight connectors, SESO is a leading Chinese brand.


The company provides rich “menu-based” platform to select products, and also meets the customer’s development needs of short delivery and synchronous customization. In the application field of automotive low-voltage connector, with the deep analysis of the world’s major automotive standards, we provide customers with highly reliable, cost-effective and quality products with strong digital R&D capabilities such as structural simulation, signal simulation, mold flow analysis, and DFM, precision manufacturing capabilities as well as the testing and verification capabilities of CNAS China Qualified and Accredited Laboratory.


We always adhere to the ‘three zeros’ quality culture of ‘zero defects, zero complaints, zero tolerance’, and strictly inspect our own products, with craftsmanship and carefulness. We are committed to doing small things to the extreme and ensure the quality consistency of massive products, with more than 6 sigma quality assurance capabilities, to provide global customers with cost-effective products and perfect solutions.


We all always uphold the values of ‘Integrity, Passion, Perfection, Sharing’; and ‘Thinking with heart, touching customers; helping employees to grow, returning to shareholders’, so as to make SESO become the most trusted connector brand!


Thinking creates wisdom. SESO provides intelligent services with craftsmanship!           








Values: integrity, passion, perfection, sharing

Vision: To be the most trusted connector brand

Mission: Thinking with heart to touch customers, help employees to grow and return to shareholders.

Talent culture:Talent is not competitive, but the ability of managing talents.

Technology culture: Making one product with 90 points is better than ten products with 60 points.

Quality culture: Do the small things to the extreme, and ensure the quality consistency of massive products.

Quality guideline: Customer-oriented, quality-based; full participation, and pursuing excellence.

EHS culture: Compliance with laws and regulations, and protecting the environment. Safety, health and prevention be the first. Pursuing continuous improvement.

Slogan: SESO connects technology and life.

Code of conduct: Integrity and loyalty, dedication and enterprising, kindness and cooperation