Company Profile
Ming-Li Precision Steel Molds Co., Ltd.
High Precision Plastic Injection Molding & Precision Tooling Solutions
Specialized in high precision engineering plastic molding for automotive, EV, semiconductor, aerospace, medical, and industrial applications.
Founded in 1983 in Taichung, Taiwan, Ming-Li Precision is an ISO / IATF 16949 certified manufacturer specializing in precision plastic injection molds, high precision plastic injection molding, insert molding, overmolding, micro molding, PEEK injection molding, 2-shot molding, and complete OEM / ODM plastic component solutions.


About Ming-Li Precision
Ming-Li Precision Steel Molds Co., Ltd. is a Taiwan-based precision manufacturing company with over 40 years of experience in precision mold manufacturing, plastic injection molding, engineering plastic molding, and advanced OEM production solutions.
We provide complete manufacturing support from concept development, DFM review, mold design, Moldflow analysis, precision tooling, mold trial, injection molding, inspection, assembly, and final production management.
Ming-Li Precision has established a strong reputation for tight tolerance plastic components, precision injection molds, insert molded parts, overmolding, micro molding, and high-performance engineering plastic molding.
Our mission is not only manufacturing plastic components — but helping global customers solve complex engineering and manufacturing challenges through precision tooling and advanced injection molding technologies.
Core Plastic Technology Services
Ming-Li Precision provides full turnkey manufacturing solutions from concept to finished product. Our major customers come from automotive, electronics, EV, semiconductor, aerospace, medical, industrial, and high-performance engineering applications.
Precision Mold Manufacturing
High precision plastic injection molds, insert molds, 2-shot molds, connector molds, micro molds, and complex tooling solutions.
Plastic Injection Molding
Stable high-volume production for engineering plastic components requiring tight tolerance, high repeatability, and reliable quality.
Insert Molding & Overmolding
Plastic-metal integration for terminals, pins, coils, magnets, bushings, electrical contacts, and functional components.
PEEK & Engineering Plastic Molding
PEEK, LCP, PPS, PEI, PPSU, PA, PBT and high-temperature engineering plastic molding for demanding applications.
Micro Molding
Micro gears, micro connectors, thin-wall parts, micro features, and small high precision plastic components.
2-Shot / 2K / Bi-Injection Molding
Multi-material and multi-color molding solutions for functional, aesthetic, and ergonomic plastic components.


Precision Manufacturing Capability
Ming-Li Precision continuously invests in advanced manufacturing technologies to support high precision mold and plastic component production. Our strength is not only mold making, but also solving difficult manufacturing challenges for global OEM customers.
Equipped with 7 YASDA Ultra-Precision CNC Machines
Our high-density YASDA machining capability supports ultra-precision mold components, complex tooling structures, and tight tolerance applications up to ±1 μm machining accuracy.
Advanced Manufacturing Equipment
YASDA ultra-precision CNC milling, GF AgieCharmilles EDM, wirecut systems, laser machining, and advanced inspection equipment support high-end precision manufacturing.
PEEK / LCP High-Temperature Molding
Ming-Li supports high-performance engineering plastics such as PEEK and LCP, helping customers solve challenges related to heat resistance, dimensional stability, and material performance.
Automation & 24/7 Consistency
EROWA automation and AS/RS storage systems support stable 24/7 manufacturing consistency, improved scheduling control, and reduced lead time risk.
Quality Assurance
IATF 16949 certified quality management system with strict inspection standards for automotive, EV, and high reliability applications.
Engineering Support
DFM review, Moldflow analysis, tooling optimization, and engineering support for complex molding and high-volume production projects.
One-Stop Manufacturing Workflow
Ming-Li Precision provides a complete turnkey solution from engineering review to mass production.
Industry Applications
Ming-Li Precision continues to expand advanced molding technologies for automotive parts, auto sensor components, insert molding, overmolding, electronic components, optical components, PEEK injection molding, 2-shot molding, bi-injection molding, and high precision engineering plastic applications.
Automotive & EV
Automotive connectors, EV power module housings, sensor housings, high-voltage components, and precision plastic parts.
EV Power Module Housings
Precision molds and injection molded housings for inverter modules, power electronics, insulation structures, IGBT-related components, and high-voltage applications.
Electronics & Connectors
LCP connectors, electronic housings, terminal insert molding, press-fit terminals, and electrical components.
Semiconductor Components
Precision plastic components, cleanroom-related parts, engineering plastic molding, semiconductor tooling, and high-performance plastic solutions.
Aerospace Applications
Engineering plastic components, lightweight structures, PEEK applications, and high reliability precision molding solutions.
Medical Applications
Medical device components, micro molded parts, diagnostic housings, and precision engineering plastic parts.
Experienced Engineering Plastics
Ming-Li Precision has extensive experience processing a wide range of engineering plastics and high-performance materials including:
PEEK, PPS, PPE, PPA, PPO, PBT, PEI, PES, PET, PSU, PVC, PC, ABS, PE, PP, PS, PU, LCP, POM, Nylon PA, PA6, PA66, PA6T, PA9T, TPE, TPR, TPU, TPV
Our engineering material experience supports customers requiring mechanical strength, heat resistance, chemical resistance, dimensional stability, electrical insulation, wear resistance, and high-volume molding performance.
100% Made in Taiwan & Stable Supply Chain
Ming-Li Precision provides Taiwan-based manufacturing support with stable supply chain management, reliable quality control, and direct engineering communication. For customers seeking China+1 sourcing strategy, risk diversification, and high reliability production, Ming-Li offers a trusted manufacturing base in Taiwan.
Our Mission
To provide advanced plastic injection molding and precision tooling technologies that help customers improve product performance, reduce manufacturing risk, enhance production efficiency, and achieve stable long-term quality.
Our Vision
To become a trusted global partner for high precision plastic injection molding, precision tooling, engineering plastic molding, and complete manufacturing solutions from concept to finished product.
Our Services
Ming-Li Precision provides complete project support including DFM analysis, mold design, Moldflow analysis, precision mold manufacturing, injection molding, insert molding, overmolding, secondary operations, inspection, assembly, and full production management.
Why Choose Ming-Li Precision?
40+ Years Experience
Founded in 1983, Ming-Li has decades of experience in precision molds, plastic injection molding, and OEM manufacturing.
IATF 16949 Certified
Certified quality management system for automotive and high reliability manufacturing.
In-House Tooling & Production
Integrated mold design, tooling manufacturing, mold trial, molding production, inspection, and assembly capability.
Advanced Molding Technologies
Insert molding, overmolding, micro molding, PEEK molding, engineering plastic molding, and 2-shot molding solutions.

Request a Technical Review for Your Next Project
Share your drawings, material requirements, tolerance targets, and annual volume with Ming-Li Precision. Our engineering team will review your project and provide professional feedback for tooling, material selection, molding feasibility, and mass production planning.
Get an Engineering Consultation