3M Plant Locations
3M Corona
Welcome to 3M Corona

3M Corona Plant

Greetings from 3M Corona

  • 3M is a global innovation company that never stops inventing. Over the years, we have worked to improve daily life for hundreds of millions of people all over the world.  We have made driving at night easier, made buildings safer, and made consumer electronics lighter, less energy-intensive and less harmful to the environment. We even helped put a man on the moon.

    Every day at 3M, one idea always leads to the next, igniting momentum to make progress possible around the world.

    3M Corona, California

    Welcome to 3M Corona!  We are part of 3M’s Industrial Mineral Products Division (IMPD), within the Safety and Industrial business.  3M IMPD is one of the oldest divisions in 3M, with a history that goes back more than 90 years. 

    3M IMPD is the world’s leading supplier of colored and specialty roofing granules for the asphalt shingle industry.  For more than nine decades, our division has been bringing vibrant and reliable color to roofs and other architectural surfaces that can be counted on to stand the test of time.

    We’re proud to have a strong safety culture and we follow a philosophy of continuous improvement with our manufacturing and business processes to ensure world-class quality and service to our customers.

    Message from Our Plant Manager

    Greetings from the 3M Corona site!

    Corona is one of four plants in the Industrial Mineral Products Division that supplies roofing granules to the asphalt and metal roofing shingle industries. Our plant has been a part of the Corona community since 1948, the year we delivered our first shipment of product to our customers.

    3M Corona has been actively involved in the community since the inception of the plant.  We have been a member of the Corona Chamber of Commerce since 1948 and actively involved on their Board of Directors.  Corona employees continually contribute to the Corona-Norco United Way and have for over 40 years. We are also active on Corona-Norco United Way Board of Directors.  We have supported many area non-profits, including Peppermint Ridge, Corona-Norco YMCA, Inland Empire Water Keepers, Inspire Life Skills Training, and Starting Over, Inc., all who are making significant impacts to the local community.  Corona continues to support the Riverside STEM Program and have an active educational partnership with Corona Fundamental Intermediate School, especially focusing on their International Baccalaureate Program.

    The Corona site strives for manufacturing excellence which includes continuous improvement, commitment to quality, an active safety culture, and environmental excellence. We are proud of our people, our products, and the contributions we have made to the Corona community.

    Angie Byars
    3M Corona Plant Manager

    Our Vision

    • 3M Technology Advancing Every Company
    • 3M Products Enhancing Every Home
    • 3M Innovation Improving Every Life

    Our Mission

    To be the world’s leading supplier of roofing granules for the asphalt shingle manufacturers.

    Our Values

    • Provide investors an attractive return through sustained, quality growth;
    • Satisfy customers with superior quality, value and service;
    • Respect our social and physical environment; and
    • Be a company of which employees are proud to be part.


    3M Corona Facts

    • In 1941, 3M acquired the 3M Corona site from the Blue Diamond Company.
    • Manufacturing started in 1948.
    • 3M Corona occupies 1,300 acres of land in the Temescal Canyon.
    • Primary product: roofing granules for the asphalt shingle industry.
    • Shipping capability from 3M Corona: railcars, bulk trucks, and bags.
    • In September 2017, the 3M Corona Plant received registration to the ISO 14001:2015 Environmental Management System Standard and in June 2019 received registration to the ISO 9001:2015 Quality Management System Standard.
    • In April 2019, the 3M Corona Plant energized a 1MW Solar Array that provides 20% renewable energy to power plant operations.

    History of 3M Corona

    The 3M Corona plant is located on a site that is rich in history for our local community. Historically, the Butterfield Overland Stagecoach passed near the site on its route to deliver the mail between San Francisco and St Louis.

    This location has been an active mine site for over 100 years. Temescal Rock Company operated the site at the turn of the 20th century, producing ballast rock for building railroads. It was then purchased by Blue Diamond Company, which operated a quarry that produced concrete aggregate until the plant was destroyed by fire in 1928. In 1924 the property was the site of the largest non-accident explosion in the world up to that point in time. 3M acquired the site in 1941 and began operations to produce roofing granules in 1948.

    The rock quarried at this site is a hard trap rock which is blue-black in color flecked with white. It has the toughness and durability to withstand maximum weathering effects.

In the Plant

  • Technologies

    As a Fortune 500 company, 3M is recognized for our worldwide research and development expertise. Our innovations spring from more than 40 technology platforms that have made us the global leader in major markets. At the Corona plant, we specialize in these core technologies:

    • Sustainable Design (Sd)
    • Ceramic Coating (Ce)
    • Process Design and Control (Pr)
  • Products and Services

    3M™ Classic Roofing Granules provide long-lasting‚ weather-resistant protection in an array of colors. Our granules are dense‚ non-porous‚ UV-ray resistant‚ and tough enough to stand up under handling. Made of a natural mineral product coated in ceramic‚ the granules meet the toughest tests of time‚ weather and marketplace. Classic roofing granules from 3M are available in over twenty elegant colors to enhance any home.

    3M™ Cool Roofing Granules are a 3M innovation (U.S. Patent 7‚ 455‚899) and an energy efficient breakthrough roofing granule technology. They can help keep a home cool with less energy consumption and lower energy costs because Cool Roofing Granules are up to four times more reflective than comparable conventional colored granules.

    3M™ Smog-Reducing granules harness the power of the sun to turn roofing shingles into a pollution-fighting surface.  When the sun hits the granules, the photocatalytic coating transforms the smog pollution (nitrogen oxides) into water-soluble ions that safely wash away with rain.

    Our granules are dense and non-porous, resist ultra-violet light and are tough enough to stand up under handling. And, they hold the long-lasting ceramic coatings added to create the ever-growing selection of colors demanded by the roofing market.

    For more information about 3M™ Classic Roofing Granules, 3M™ Cool Roofing Granules, 3M™ Smog-reducing Granules or 3M™ Highly Reflective Granules please visit our Roofing Granules Website.

    For more information about 3M SCM products, please visit 3M™ Nepheline Syenite and 3M™ Natural Pozzolan on our website.

In the Community

  • 3M Corona Life

    Welcome to Corona, California

    The City of Corona is located approximately 45 miles southeast of Los Angeles in western Riverside County. The City limits encompass 39.2 square miles and the population is approximately 168,000. A city whose heritage spans more than a century, Corona has emerged as an ethnically diverse community, where a significant percentage of the population is made up of young, well-educated families.

    The Corona community boasts many amenities that provide a first-rate quality of life for residents. The City has more than 394 acres of parks, with sports fields, basketball courts, playgrounds, tennis courts, two skate parks, and an outdoor pool.

    Public Safety efforts by the Corona Police Department and Corona Fire Department have resulted in decreasing crime rates, quick response times and a superior paramedic program.

    The Corona Public Library and the Circle City Center provide cultural and educational programming, and the Senior Center is a hub of activity with programs, workshops and social gatherings. The City also operates a recreational airport.

    Corona's industrial base has played an important role in the growth of the City and its employee base. Corona's economy is strong and getting stronger! There are more than 42,000 jobs within the city of Corona and there is a workforce of more than 84,000. Our retail and commercial areas are expanding, and office development is booming. Corona has more than 34 million square feet of industrial space and more than 3 million square feet of office space existing, under construction, or planned. Economic Development is the business advocate always looking for ways to help the business community with incentives, communication, and team building.

    For more information about Corona, please visit the City of Corona website.

  • 3M Corona Community Involvement

    The 3M Community Relations philosophy is to positively impact communities and prepare individuals and families for success. 3M does this through focusing on five main areas of support: Education, Health and Human Services, Arts and Culture, Environment, and Volunteerism.

    3M supports several different non-profit organizations listed below through volunteerism, monetary donations, and product donations.

    3M Employee Participation:

    • Corona-Norco Unified School District
    • Santa Ana Historical Preservation Society

    3M Support for the Community:

    • Corona Norco United Way
    • Corona Norco YMCA
    • Corona-Norco Unified School District
    • Santa Ana Watershed Association
    • Inland Empire Water Keepers
    • Science and Technology Partnership Program
    • Inspire Life Skills Training
    • Starting Over, Inc.
    • Peppermint Ridge
    • Santa Rosa Plateau Ecological Reserve

Contact 3M Corona Plant

(951) 737-3441

3M Corona
Industrial Mineral Products Division
18750 Minnesota Road
Corona, CA 92881