In 2002, Shengli Electronic Components Factory was established, specializing in the production of various pin headers and female headers.

In 2012, to meet the needs of business development, the company expanded its production to various terminal blocks.

In 2013, with the aim of better serving customers and improving product quality, the company successively obtained certifications including CE, UL, ISO9001, and ROHS.

In 2014, driven by business expansion, the company set up offices in Guangzhou, Shenzhen, Jiangsu, and other regions.

Founded in 2015 in Cixi, Ningbo, the company initially focused on basic products such as industrial automation housings and structural parts for terminal blocks, targeting the domestic OEM market.

We established our first injection molding production line and started independent production of plastic housings, gradually accumulating experience in mold development and structural design.

We defined our product strategy of “taking housing as the core and connectors as the breakthrough point”, which laid a foundation for our systematic product layout in the later stage.

In 2020, to support further development, the company established Ningbo San'an Electronic Technology Co., Ltd., simultaneously expanded its second factory, and transformed to focus on the independent R&D of new products.

We have successively introduced 90T and 120T injection molding machines and built up stable processing capacity.

Our product range has been expanded to industrial control housings, terminal blocks, plug‑in wiring terminals, and structural parts for small connectors.

In the same period, we began to provide customized housing solutions for customers in industrial automation, equipment manufacturing, new energy, and other industries.

Our mold development capability has been steadily improved, and the combination of structural design and housing manufacturing has formed our competitive advantages.

In 2023, the company opened a sales office in Shanghai.

We have added a 160T injection molding machine, achieving coverage of multiple tonnages to support the production of more high-precision housing products.

We have fully introduced the Mingdao Cloud digital system and three-dimensional warehouse, covering IQC incoming inspection, IPQC process inspection, OQC outgoing inspection, CTQ key quality characteristic management and APQP new product introduction process.

The R&D team has been further optimized, with improved innovation capabilities, and has launched a variety of highly reliable connector housings and buckle mechanisms.

The company has continuously participated in large-scale industry exhibitions such as the Industrial Expo, Shenzhen Industrial Expo and ITES, helping to enhance brand influence.