We own strategically located, proven, long-life reserves of high-quality industrial minerals.
Great Lakes Minerals
The largest and highest-quality limestone producer on the Great Lakes, with quarries, processing plants, docking facilities and the largest fleet of self-unloading U.S.- Flag vessels on the Lakes.
Global Stone
Operates limestone quarries and lime and limestone processing facilities serving customers located primarily in the Mid-Atlantic and southeastern United States.
Performance Minerals
Mines and processes specialized industrial minerals, primarily high-purity silica sands and muscovite mica, with facilities in the southwestern United States, Ohio and North Carolina.
Ohio Valley Marine Service, Inc. operates the only full service marine repair facility between Louisville and Paducah, Kentucky, providing fuel, supplies, groceries, engine parts, and crew changes at the mouth of the Green River on the Ohio River.
Ohio Valley RV Park in Martins Ferry, OH offers full hookup RV parking with water, sewer, and electricity, catering to oil and gas workers with monthly, weekly, and daily rental options including free Wi-Fi.
One Maritime Plaza is a high-rise office building located at 720 Water Street in downtown Toledo, Ohio, offering commercial office space in the city's central business district.
Owensboro Riverport Authority operates a full-service port on the Ohio River providing access to major markets via river, rail, road, and air, supporting domestic and international shipping in the Midwestern and Southern United States.
Perrysburg Boat Club, founded in 1937 in Perrysburg, Ohio, promotes yachting and seamanship while providing a clubhouse and dock facilities for its members.
The Columbiana County Port Authority in East Liverpool, OH, focuses on business development, economic incentives, and regional advantages related to river terminal facilities along the Ohio River.
The Port Authority of Conneaut manages marina and beach areas in Conneaut, Ohio, providing dockage for boats up to 30 feet and engaging in coastal resilience and redevelopment projects.
RFD Beaufort Inc. is a foreign-owned, for-profit manufacturer specializing in military, maritime, and aerospace survival equipment based in Sharon Center, Ohio.
RKA Petroleum Companies LLC is a leading distributor of refined and renewable fuel and fuel management solutions, providing tailored fueling services to various industries including marine services in Michigan and Ohio.
Rampstop Marine Service is a family-operated business providing grocery and supply fulfillment and delivery services to inland waterways mariners on the Ohio and Mississippi Rivers.
Redbrook Boat Club is a member-owned boating club located on the shores of Lake Erie in Ashtabula, Ohio, providing boating facilities and amenities since 1952.
Riverview Yacht Club is a member-owned marina located on the Ottawa River in Toledo, Ohio, offering 249 full amenity docks, a full-service restaurant and bar, boat storage and maintenance facilities, and affiliated with AYC and I-LYA.