New building doubles inventory to serve entire Grand Canyon State.

Coldspring® subsidiary will also have former president in organizational-development role.

Trump administration ratchets up proposed import tax on natural stone, quartz surfaces, ceramic tile and related goods.

Quartz-surface manufacturer not quite to 2017 performance, but beats earnings-per-share estimates.

Brings three decades of technical expertise to industry-group leadership.

Spanish stone producer likely to be sold piecemeal after another bid fails to take company out of bankruptcy.

China cranks up quartz shipments; marble also good, but other sectors muddled.

Transatlantic transaction brings prestigious limestone to company fold.

Pinnacle Awards, other honors need nominations by Friday.

U.S. Commerce Department may take until mid-September to determine initial punitive duties.