Sand Products Corporation

Sand Products Corporation (SPC) is a sand & gravel supplier based in Muskegon, Michigan.
The company was found in January 2, 1930 by Brothers Mark and Max McKee as company that mined and processed industrial sands. In the early 1930s SPC began operating a large commercial dock in Muskegon, MI., dubbed the Mart Dock, handling a wide variety of cargoes and became deeply involved in the Great Lakes shipping industry and vessel ownership through a series of wholly owned subsidiaries and partnerships.
USS LST-393
SPC purchased the decommissioned tank landing ship, USS LST 393 as war surplus in 1948. She would operate as a car transit vessel under named Highway 16 for many years. Today she’s a museum ship located near SPC’s offices.
Subsidiaries
*MiCoast Properties, LLC
*Aquastar Cruises
*Port City Marine Services
*Wisconsin & Michigan Steamship Company
*Michigan-Ohio Navigation Company
 
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