CEMBUREAU - The European Cement Association (http://www.cembureau.be)

ERMCO - European Ready Mixed Concrete Organisation (http://www.ermco.org)

World Road Association (http://www.piarc.org)

American Concrete Pavement Association (http://www.pavement.com)

American Concrete Institute (http://www.concrete.org)

Bundesverband der Deutcshen Zementindustrie E.V. (http://www.bdzement.de)

Verband der Schweizerischen Cementindustrie (http://www.cemsuisse.ch)

Vereinugung der Österreicherischen Zementindustrie (http://www.zement.at)

International union Of Architects (http://www.uia-architectes.org)

Sabanci Holding (http://www.sabanci.com)

Heidelbergcement (http://heidelbergcement.com)

HeidelbergCement Trading (http://www.hctrading.com)

CBR Cement (http://www.cbr.com)

CIMSA (http://www.cimsa.com.tr )

OYSA (http://www.oysa.com.tr)

Turkish Cement Producers Organisation (http://www.tcma.org.tr)

Turkish RMC Producers Organisation (http://thbb.org)

CEMBUREAU - The European Cement Association (http://www.cembureau.be)

ERMCO - European Ready Mixed Concrete Organisation (http://www.cembureau.be)

World Road Association (http://www.piarc.org)

American Concrete Pavement Association (http://pavement.com)

American Concrete Institute (http://www.concrete.org)

Bundesverband der Deutcshen Zementindustrie E.V. (http://www.bdzement.de)

Verband der Schweizerischen Cementindustrie (http://www.cemsuisse.ch)

Vereinugung der Österreicherischen Zementindustrie (http://www.zement.at)

International union Of Architects (http://www.uia-architectes.org)

HeidelbergCement Group (http://www.heidelbergcement.com)