about Mastdew

Interconnecting Precision

Leading Manufacturer of Precision Connector Components

Founded in 2010 and headquartered in Shanghai, we are a leading
high-tech enterprise specializing in premium connector components. We deliver end-to-end solutions—spanning precision manufacturing, high-volume injection molding, stamping, and automated assembly—to global leaders in automotive electronics, telecommunications, medical devices, and industrial automation.

about Mastdew

0.001mm
MACHINING TOLERANCE
79+
PATENTS & SOFTWARE COPYRIGHTS
1.55B
PARTS / YEAR PLANNED CAPACITY
25+
years of ENGINEERING EXPERIENCE

Our History

Twenty-Five Years of Tightening the Tolerance

We started as a mold shop. Everything we build today still starts with a tool we cut ourselves.

1999
2008
2015
2021
2026

1999
Founded in Shanghai

A precision mold workshop serving local electronics manufacturers.
2008
Stamping Added

Progressive dies bring terminal production in-house, closing the loop on tooling.
2015
IATF 16949

Certified for automotive series supply. First OEM tier-1 programmes.
2021
Automated Assembly

Vision-guided assembly cells push capacity past a billion parts per year.
2026
EV & Global Reach

High-voltage connector lines, and customers across Europe, North America and Asia.

The Plant

Everything Under One Roof

Tooling, stamping, molding, assembly and metrology all sit in the same building. Nothing is subcontracted — which is why the tolerance holds.

quality

Partner Clients

We believe strong partnerships create greater value. By working closely with trusted partners across different industries, we strengthen our capabilities and deliver flexible, customized solutions that meet the specific needs of each client.

How We Operate

Three Rules We Don't Bend

01
Measure, Don't Claim

Every number on a datasheet has a report behind
it. If we can't measure it, we don't publish it.
02
Own the Tooling

The mold and the die stay in our building. That's the only way a 0.001 mm tolerance survives production.
03
Answer in 48 Hours

Feasibility review, quotation, or a straight no. Engineering teams lose more time waiting than building.

Global Reach

Shipping from Shanghai, Supporting Locally

Our engineering team travels to the customer's line. Whether it's a plant in Morocco, Mexico or the Rhine valley, someone from Mastdew has stood on it.