VENDORS & MANUFACTURERS:

Within the State of Hawaii, there are four block manufacturing plants.  One plant located on the island of Oahu (Campbell Industrial Park), one on Maui (Puunene),  and two on the island of Hawaii (Waimea and Hilo).

Most of the blocks manufactured use calcareous limestone (coral), basaltic aggregate, and cinder.  Cinder is mined from the island of Molokai, Maui and Hawaii.

 The following is a listing of participating manufacturers.