A History of Craftsmanship and Growth

Vision, Mission & Values

Our Vision

To be a Midwestern USA leader in thermoplastic injection molding, mold building and high precision machining.

Our Mission

To deliver high quality and value in manufactured components by leveraging our technical, manufacturing and automation expertise.

Our Values

Minco’s values are lived every day on our production floors and in our offices. They’re the foundation of our work and our relationships.

We exhibit integrity and excellence in all that we do.

  • We deliver on our promises.
  • We maintain traditional values of respect and treating others as we would like to be treated.
  • We are committed to making a consistent contribution to our customers, employees and stakeholders.
  • We believe in sustainable and profitable performance. Growth and profitability are essential to our health and prosperity as a company.
  • We invest in the business to enhance facilities, technical capabilities and efficiencies to the benefit of our customers and employees.
We care about our communities, environment and have respect for future generations

Our History

Founded in 1954 in Dayton, Ohio, Minco Group began as a small toolmaking business built on precision, craftsmanship, and customer service. Over the decades, our commitment to quality and reliability fueled steady growth and expansion, including the creation and acquisition of our divisions ASPM plastic injection molding, Minco Tool & Mold, and Minco Machining & Manufacturing.

Today, The Minco Group operates from a combined 300,000 of manufacturing space across multiple facilities, supporting customers through every stage of their product lifecycle, from concept and design through tooling, molding, machining, and maintenance.

1954

Founded Minco Tool & Mold

Robert and William Minneman founded Minco Tool and Mold in the basement of their home with a Bridgeport Grinder

1954

1959

Moved to new home

Moved from their home to an 8,000 sq ft facility on 4600 Poe in Dayton Ohio (now Wadsworth Ave.)

1959

1968

MTM Molded Products branches off

MTM Molded Products branched off from Minco Tool to form their own injection molding company and began making gun scopes.

1968

1970

MTM New Location

MTM Molded Products opened a new location at 5670 Webster St. in Dayton, Ohio

1970

1975

Minco Tool and Mold broke ground

Minco Tool and Mold broke ground on the property right next to MTM located at 5690 Webster St. in Dayton, Ohio.  The 16,000 sq ft facility was completed in the Spring of 1976.

1975

1977

Second Shift Started

Minco Tool started a 2nd shift in both the tool shop and polishing department to meet customer demands.

1977

1982

First NC Milling Machine

Minco Tool added their first NC Milling Machine (Bostomatic). Ran from a tape that was punched using a computer.

1982

1984

High Technology Center

Minco Tool adjoined the former MTM building and opened a “High Technology Center” with a  Grand Opening May 11, 1984.

1984

1985

ASPM purchased Hydraulic Molding Machines

ASPM purchased 5 Toshiba Hydraulic Injection Molding Machines (60, 120, 250, 310 & 500 ton).

1985

1990

Product Design

Mino Tool and Mold added product design capabilities.

1990

1999

ASPM Molding facility opened

ASPM opened up a molding facility and warehouse in Clay City, KY to better serve the needs of our customer base.

1999

2000

ASPM takes complex applications

ASPM began taking on more complex decorating applications and value added assembly programs. Minco Tool and Mold added Job Boss.

2000

2004

New President

Robert Minneman appoints his son Joe Minneman as president of the Minco Group on June 19, 2004.

2004

2005

New ERP System

Implemented Enterprise IQ (IQMS) ERP System at ASPM with the addition of a complete Warehouse.

2005

2006

ASPM Expanded

ASPM expanded manufacturing by opening up a plastic injection molding facility and warehouse in Fairborn, Ohio.

2006

2011

Another Facility

ASPM broke ground on their new 200,000 sq ft facility located in Vandalia, Ohio.

2011

2012

New facility

The Robert Minneman Family dedicated the new Vandalia, OH ASPM facility on June 19, 2012.

2012

2013

ASPM consolidates facilities

ASPM completed the consolidation of all manufacturing and warehousing into the new Vandalia facility.

2013

2015

First Robot

ASPM purchased its first 6 axis robot. The KUKA Robot features an “ASPM Modular Mount Design”

2015

2016

New technology and facility

  • In January 2016, ASPM installs first 3D printer.
  • ASPM Opens a New Manufacturing Facility in Beavercreek Ohio Investing in 12 New Injection Molding Presses to meet customer demands
2016

2018

Additional robots

ASPM continues automation investment with 6 axis robotic training cells.  Released multiple 6 axis robots w/ vision system integration into manufacturing cells

2018

2024-2025

ASPM’s new Zeiss CMM machine

ASPM purchased it’s second Zeiss CMM machine in response to customer’s demand for more
in-process quality checks, validation and traceability

2024-2025

Blog (Insights & Updates)

Plastic Injection Mold

What is Tooling? And Why Is It Essential to Plastic Injection Molding?

Just as a baker pours their batter into the right baking pan, a skilled machinist pours liquidized plastic into a
Plastic injection molded parts

Common Plastic Injection Molding Problems (and How to Solve Them)

Plastic injection molding is a versatile and efficient way to produce durable, detailed parts of endless sizes, shapes, and purposes.

FAQs

What industries do you serve?
We serve aerospace, defense, medical, automotive, and industrial markets, providing precision tooling, molding, and machining solutions.
The Minco Group includes three specialized divisions: ASPM plastic injection molding, Minco Tool & Mold, and Minco Machining & Manufacturing.
We have two locations located in Dayton, Ohio.

Yes. We’re always looking for skilled and motivated individuals to join our growing team. Visit Careers for open roles.

Minco Tool & Mold is ISO 9001:2015 Certified
Minco was founded in 1954 in Dayton, Ohio, and has grown steadily over seven decades through investment, innovation, and long-term customer partnerships.
Our lifecycle integration, combining tooling, molding, and machining under one roof, delivers accountability, faster response times, and higher quality control.
Quality is a shared commitment across every employee. Our processes include First Article Inspection (FAI), PPAP, root cause analysis, calibration, and LEAN/5S principles, all designed to ensure consistency and continuous improvement.
Visit our Contact page to reach our team for program inquiries, partnerships, or career opportunities.