Martin Marietta Magnesia Specialties LLC, a subsidiary of Martin Marietta Materials, manufactures the widest range of high purity magnesium oxide and magnesium hydroxide in North America.
Our major manufacturing facilities are located in Manistee, Michigan and Woodville, Ohio. Regional processing and distribution facilities are strategically located throughout the world to better serve our customers.
Martin Marietta Magnesia Specialties is ISO 9001:2008 – ANSI/ISO/ASQ Q9001-2008 Certified.
8140 Corporate Drive, Suite 220
Baltimore, MD USA 21236
Phone: 800-648-7400 or 410-780-5500
Magnesia Chemicals Facility
1800 East Lake Rd.
Manistee, MI 49660
Dolomitic Lime Facility
755 Lime Rd.
Woodville, OH 43469
Lime Sales & Tech Support
Our corporate management team consists of:
John R. Harman, President
Joseph Reilly, Vice President – General Manager, Lime Operations
Jim Reithel, Vice President of Chemical Operations
Douglas Bopst, Vice President of Sales, Chemicals
Aileen Gibson, Director of Technical Services
Please see our Contact Us page for sales and technical contact information.