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Sanyou Corporation Limited

Sanyou Corporation Limited (hereinafter referred to as “Sanyou”) is a professional national level high-tech enterprise integrating R&D, manufacture and sales of relay, and one of China Top 100 Electronic Component Enterprises. Now it governs many wholly-owned or holding subsidiaries, such as Sanyou Corporation Ltd., Anhui Mingguang Sanyou Electronics Co., Ltd., Zhejiang Ningbo Yongyou Electronics Co., Ltd., Anhui Mingguang Wanjia Lianzhong Electronics Co., Ltd., North America Sanyou Co., Ltd. and South Korea Sanyou Co., Ltd., with over 3,000 employees.

Sanyou produces over 20,000 types of relays in over 80 series, covering magnetic latching relay, general power relay, automotive relay and communication relay, which are widely used in home appliance, traffic, industry, energy, information, medical treatment and other fields. Sanyou has first-rate automated assembly equipment design capacity, 100+ full-automatic or semi-automatic production lines, and annual capacity of almost 1,000 million relays, and many types of products are made by full-automatic production lines.

Sanyou has a complete set of quality assurance system, built the industry's advanced product testing center, the second domestic passed the US UL witness laboratory, Germany VDE data laboratory certification, and has passed the CNAS national accredited laboratory certification. Sanyou spent a lot of money to introduce the power relay performance test bench, including short-circuit test and life test. It is one of the only companies in the industry that can conduct such experiments on its own. Sanyou has a complete management system, and has passed ISO9001, IATF16949, ISO14001 standard certification. All products have passed UL, CUL and China CQC certification, and meet the requirements of EU ROHS and REACH. Some products have obtained German VDE and TUV certification. Complete and reliable quality, environmental assurance system, perfect technical service, global marketing service network and best performance-price ratio make “Sanyou Relay” the best choice for well-known customers at home and abroad.

Technology R&D and product innovation are the force and source of our survival and development. Sanyou has acquired abundant R&D achievements and over 80 national patents over the years. The company also lays stress on introducing relay design and manufacturing technology and production equipment from advanced countries, and has established extensive cooperation with well-known enterprises in Japan, South Korea and Britain, invested heavily in introducing excellent product design and manufacturing technology and set up its own manufacturing systems of high-precision and high-quality molds, hardware and injection molded plastic parts, making sure that its technology, quality and technological level of product design, mold development, parts manufacture and finished product manufacture are in leading position of international counterparts.

Sanyou has persistently followed the quality and environment policy of “Concern Customers, Improve Quality, Reduce Cost, Protect Environment, Green Sanyou, Sustainable Development”, the spirit of “Dedication, Credit, Unity, Innovation”, the core values of “Quality First, Customer Supreme, Work More, Talk Less, Result Orientation, Creditable Operation, All-win, Devotion, Innovation, Loyalty & Harmony, Integrity”, and the mission of “Create Maximum Value for Customers, Opportunities for Employees and Benefit for Society, Increase Value for Shareholders”.

In increasingly competitive global market, Sanyou will serve global customers with excellent quality, reasonable and competitive price, punctual delivery and professional after-sales service as always.


Sanyou headquarter
Located in Tangxia Town, Dongguan city, covering an area of more than 40,000 square meters, Sanyou HQ includes Strategic Planning and Decision Center, Human Resource Control Center, Product testing Center, Product R&D Center, Marketing and Service Center, Automation Equipment R&D Center, Supply Chain Management Center and Financial Control Center, Dongguan manufacturing center and other institutions.

Dongguan Business Unit
Year of establishment: 2008
Product Type: mainly produce General power、automotive、new energy relay
Production line number: 21 lines
No. of Employees: 800+
Capacity: monthly capacity of 25 million pcs 

Mingguang Sanyou
Year of establishment: Year 2006
Product Type: mainly produce General power relay
Production line number: : 20 lines
No. of Employees: 500+
Capacity: monthly capacity of 25 million pcs

Mingguang Wanjia
Year of establishment:2010
Product Type: specializing in the production of magnetic latching relays
Production line number: : 8 lines
No. of Employees: 1500+
Capacity: monthly capacity of 4.5 million pcs

Ningbo Yongyou
Year of establishment:2009
Product Type mainly produce General power relay
Production line number: 14 lines
No. of Employees: 400+
Capacity: monthly produce 20 million pcs

Jingdezhen Sanyou
Year of establishment: 2016
Product Type: specializing in the production of new energy relays, namely high voltage DC relays
Production line number:  3 lines
No. of Employees: 100+
Capacity: monthly capacity of over 50,000 pcs

Sanyou Europe
Year of establishment:2015
Responsible for product sales in Europe

Sanyou North America 
Year of establishment:Year 2011
Responsible for product sales in USA, Canada, Mexico, etc

Sanyou South Korea
Year of establishment:2011
Responsible for product sales in South Korea