Exhibit 21

The following is a list of subsidiaries of Eagle Materials Inc., wholly-owned unless otherwise stated. This list of subsidiaries includes all of the significant subsidiaries of Eagle Materials Inc. as of May 25, 2012.

Entity Name		Jurisdiction of Organization
AG SOUTH CAROLINA LLC		Delaware
AMERICAN GYPSUM COMPANY LLC		Delaware
AMERICAN GYPSUM MARKETING COMPANY LLC		Delaware
AUDUBON MATERIALS LLC d/b/a Central Plains Cement Company LLC		Delaware
AUDUBON READYMIX LLC d/b/a Quicksilver Readymix LLC		Delaware
CCP CEMENT COMPANY		Nevada
CCP CONCRETE/AGGREGATES LLC		Delaware
CCP GYPSUM LLC		Nevada
CENTEX MATERIALS LLC		Delaware
ILLINOIS CEMENT COMPANY LLC		Delaware
KANSAS CITY AGGREGATE LLC d/b/a Talon Concrete and Aggregates LLC		Delaware
KANSAS CITY FLY ASH LLC		Delaware
KANSAS CITY READYMIX LLC d/b/a Talon Concrete and Aggregates LLC		Delaware
MATHEWS READYMIX LLC		California
MOUNTAIN CEMENT COMPANY		Nevada
NEVADA CEMENT COMPANY		Nevada
NORTHERN WHITE SAND LLC		Delaware
REPUBLIC PAPERBOARD COMPANY LLC		Delaware
TEXAS CEMENT COMPANY		Nevada
TEXAS LEHIGH CEMENT COMPANY LP d/b/a Texas Lehigh Cement	50%	Texas
TLCC GP LLC		Delaware
TLCC LP LLC		Delaware
TULSA CEMEMT LLC d/b/a Central Plains Cement Company LLC		Delaware
WESTERN AGGREGATES LLC		Nevada