Scopo was specifically charged with extorting $326,000 from a concrete supplier.

In May, six current and former employees of a concrete supplier were charged with fraudulently concealing that some concrete was of poor quality.

The city's troubled attempts to gain a new concrete supplier began with an invitation for proposals in May 1985.

He controlled S&A, a concrete contracting company, and Certified, one of the two major concrete suppliers in Manhattan.

But concrete suppliers expect the problem to get worse on Monday, after the Yom Kippur lull.

B1 The biggest concrete supplier in New York City is under Federal investigation for possible financial irregularities and ties to organized crime.

In the months that followed, the offices and trucks of a major concrete supplier to the site were vandalized a dozen times.

Because of the failure of the West 57th Street plant, the city has been relying on other concrete suppliers and will continue to do so, city officials said.

The closest steel fabrication facility may be much further from the construction site than the nearest concrete supplier.

Mountain Park Concrete, Inc. is a concrete supplier based in Colorado.