ST. LAWRENCE CEMENT GROUP INC.
TSX : ST.SV.A

ST. LAWRENCE CEMENT GROUP INC.

May 11, 2006 17:30 ET

St. Lawrence Cement Celebrates two Prizes Awarded to the 'Green Energy Benny Farm' Project

MONTREAL, QUEBEC--(CCNMatthews - May 11, 2006) - Today, St. Lawrence Cement (TSX:ST.SV.A) hosted a special event which gathered designers and partners of the "Green Energy Benny Farm" project to celebrate the two Holcim Awards that were presented to project architects L'OEUF (L'Office de l'Tclectisme urbain et fonctionnel) - Pearl Poddubiuk et AssociTs within the last months.

The "Green Energy Benny Farm" project, developed by L'OEUF, in partnership with Martin Roy et AssociTs, took home the Gold prize for North America last September, and the Bronze prize at the global competition on April 24, in Bangkok, Thailand. These awards were accompanied by a total US $250,000 cash prize.

Today's event took place at Chez Soi NDG, one of the three non-profit housing organizations that are part of the "Green Energy Benny Farm" project.

"The "Green Energy Benny Farm" project is now recognized globally as a model of sustainable construction", said Philippe Arto, President and Chief Executive Officer of St. Lawrence Cement. "I believe that this approach will become a benchmark in urban development and will be an inspiration to creative minds around the world, which is the true spirit of the Holcim Awards for Sustainable Construction."

Developed by and for the local community, Green Energy Benny Farm's core innovation is the unique integration of building, sustainable systems, and community process in the low-cost housing sector. Among notable technological innovations, the project uses an on-site renewable energy source that drastically reduces the environmental impact of transporting energy or burning fuel. The geothermal systems have the lowest life-cycle cost and the lowest impact on the environment.

St. Lawrence Cement is proud to support this showcase of sustainable construction and will donate the cement required to install the 23 geothermal wells on the Benny Farm site.

Benny Farm was developed in the 1940's to house the returning WWII veterans. As the veterans aged and moved on, the site fell into decline. The opportunity latent in decline and failure - renovation - has been an important element in a global and long-range concept of sustainability, and is central to the generation of this project.

"I congratulate the Green Energy Benny Farm project winners and applaud St. Lawrence Cement for its support of the Holcim Awards in Canada," said Helen Fotopulos, City of Montreal Executive Committee Member, responsible for the environment, parks, green and blue spaces, Mont-Royal and the status of women. "The world's great cities are facing tremendous new challenges today. Cities are key partners in sustainable community development and this project, supported by FCM's Green Municipal Fund, is helping MontrTal assert itself as a great metropolis."

At the event, City of Montreal Councillor Michel Prescott, representing the National Board of Directors of the Federation of Canadian Municipalities (FCM), and Senator AndrTe Champagne, representing the Honourable Gary Lunn, Minister of Natural Resources Canada, announced a Green Municipal Fund grant of $3,091,100 to help Green Energy Benny Farms accomplish the work of 'greening' the 187 renovated and newly constructed units.

"FCM is pleased to support this project," said Councillor Prescott. "Sustainable community planning is the key way for communities to secure their future growth and progress. GMF projects maximize environmental, social and economic benefits and lay the groundwork for sustainability at the local level."

The Holcim Awards competition was launched by the Holcim Foundation for Sustainable Construction, established in Switzerland with the collaboration of five of the most prestigious technical universities in the world. Judging of the sustainable construction projects was conducted by a jury of 15 independent and internationally recognized scientific, business and social experts. The selection criteria were based on environmental and aesthetic qualities, as well as ethical and economic considerations.

The presentation of the global Holcim Awards concludes the first three-year cycle of this competition. The next cycle will begin mid 2007.

In Canada, the Holcim Awards for Sustainable Construction are supported by St. Lawrence Cement, a leading producer and supplier of products and services for the construction industry, namely cement, concrete, aggregates and construction. The Company operates four cement plants that are certified ISO 14001 and 9001, concrete plants, quarries and sand pits, and offers construction services. Sustainable development is an integral part of its business strategy and planning process. It operates in Canada and on the eastern seaboard of the United States, and employs 3,200 people.

St. Lawrence Cement is a member of the Holcim Group, based in Switzerland, one of the largest cement, concrete and aggregates suppliers in the world.

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