Since 2000, the MaxCalla companies have grown from a one-plant operation to an industral leader in supply and distribution. MaxCalla and its affiliated companies produce gray, white, custom colored and blended cements; aggregates; ready-mix concrete; concrete pipe and block; pre-cast and pre-stress concrete units and related construction materials throughout North America, Europe, Asia, South America and Africa.Our core product is the manufacture of cement which when combined with water, sand and gravel forms concrete.