Connolly-Pacific Co.

Service Rock Products Corp.

Antelope Valley Aggregate, Inc.

Granite Construction Co.

Cemex, Inc.

Holliday Rock Co., Inc.

Vulcan Materials Co.

Sls & N, Inc.

Brickyard Clay Pit

Vulcan Materials Co.

Del Sur Ridge Quarry

United Rock Products Corp.

Azuza Plant

Livingston Graham

Redco Mill

Curtis Sand & Gravel Co.

Connolly-Pacific Co.

Vulcan Materials Co.

National Cement Co. Of California, Inc.

Vulcan Materials Co.

Vulcan Materials Co.

Hi-Grade Materials Co.