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About Us

Chengdu Mengsheng Electronics Co., Ltd.

Why Choose Us


Since its establishment, the company has insisted on developing science and technology, based on reputation and integrity, maintaining good sustainable development, established a strict quality management system and management system.


The company is committed to the research and development of electromagnetic compatibility and harmonic suppression technology. We are one of the most potential factories in China.


All our finished products are 100% inspected and delivered by professional production staff, testers and professional testing equipment to ensure the quality and reliability of each product.

What We Do


Chengdu Mengsheng Electronics Co., Ltd. was established in 2006. Meeting the needs of market development, formulating a marketing plan to provide customers with reliable, inexpensive products and high-quality services,the company provides EMI power supply noise filter manufacturing and EMC testing and solutions services after several years of development.

We provide comprehensive solutions for electromagnetic compatibility (EMC) and project implementation, and supply series of power line filter products such as EMI filters, pulse group suppression, and surge suppression. EMI filters include military-grade/industrial-grade AC single-phase power filters, AC three-phase power filters, and DC power filters. Most products have passed CUL, CE, CQC, ROHS certification. We can provide various 0.5A-1000A power filters within 2-4 weeks, provide EMC pre-test and technical support, and provide to customers with various customized power filters. EMI power filter is our main product, it is widely used in power systems, power systems, frequency conversion systems, digital systems, communication systems, medical equipment, testing equipment, consumer electronics and other fields. It is the first choice for electromagnetic compatibility (EMC).

Our Factory

After years of development, we have more than 3,000 square meters of production plant and office space and laboratories with our own property rights. The testing equipment includes salt spray testing machine, EMC testing equipment, network analyzer, with stand voltage insulation equipment, LCR digital bridge testing Such as various equipment, this can guarantee the quality of raw materials and finished products in all aspects. The production workshops include plastic injection workshop, metal shell stamping workshop, filter production and assembly workshop, filter packaging workshop, filter inspection workshop

All our finished products are 100% inspected and delivered by professional production staff, testers and professional testing equipment to ensure the quality and reliability of each product.









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Our History

2008: The company was established in Xindu District, Chengdu.

2009: The company completed the trademark registration of DOREXS products.

2010: The company carried out website and product promotion on various domestic websites in China.

2011: The company's performance continued to grow and began planning to deploy global operations.

2013: The company brand DOREXS completed the registration of European Union trademark, Madrid trademark, American trademark and other places.

2015: For the long-term development, the company spent more than 5 million to purchase a special plant with 2,600 square meters in Jintang County, Chengdu.

2016: The company established the sales department of overseas market and officially launched an attempt to expand international business.

2017: The company officially moved from Chengdu Xindu District to a professional workshop in Jintang Industrial Park, Chengdu, in additional, built a new plastic injection workshop, metal shell workshop, and EMC test laboratory.

2018: The company developed rapidly. In order to lay out the later development, set up the R&D team and expand the sales team, the company spent more than 8 million yuan to purchase a second professional factory in Guanghan City, Sichuan Province.

2020: As the company's influence getting stronger, the Sichuan Provincial Secretary with his team came to our company to guide our working direction.