Cornerstone Standards Council Presents the World's First Responsible Quarry Certificate TORONTO, ON--(Marketwired - February 23, 2016) - In a world first, CRH Canada Group Inc.'s Acton Quarry has been certified as socially and environmentally responsible. Stone, sand and gravel from...

Cornerstone Standards Council Presents Ontario's First Responsible Quarry Certificate TORONTO, ON--(Marketwired - February 20, 2016) - In an Ontario first, CRH Canada Group will be presented Monday with a certificate recognizing its Acton Quarry as the world's first certified...

Windmill Developments, The Minto Group and ZZEN Group of Companies Team Up for a More Responsible Aggregate Sector TORONTO, ON--(Marketwired - May 27, 2015) - Today, Windmill Developments, The Minto Group and ZZEN Group of Companies sent notice to the Cornerstone Standards Council (CSC) that they will...

Industry and NGOs Reach Unprecedented Agreement on the World's First Voluntary Aggregate Standard WOODBRIDGE, ON--(Marketwired - January 12, 2015) - The Board of Directors of the Cornerstone Standards Council (CSC) is proud to release the world's first voluntary standard for the responsible...