Martin Marietta Magnesia Specialties

About Us

Martin Marietta Magnesia Specialties is a global leader in the manufacture of high purity magnesium oxide and magnesium hydroxide products, which are used in a variety of environmental, industrial, chemical, and specialty applications. Additionally, Martin Marietta Magnesia Specialties is the largest producer of high purity dolomitic lime in North America.

With its primary manufacturing facilities in Manistee, Michigan (magnesia plant) and Woodville, Ohio (dolomitic lime plant), Martin Marietta Magnesia Specialties also employs global and domestic distribution points to better serve its customers both domestically and worldwide.