Slag Cement Association
Information on the use and benefits of slag cement (ground granulated blast furnace slag) in concrete and other construction applications.
http://www.slagcement.org/

Civil and Marine Slag Cement Ltd
Hanson UK: Hanson UK is a leading producer of crushed rock, sand and gravel, ready-mixed concrete, precast concrete products and facing bricks. The company has two divisions: Hanson Aggregates UK and Hanson Building Products UK.
http://www.civilandmarine.com

Indorama Cement Ltd.
Indorama Cement Ltd. manufactures world class Portland Slag Cement (Commando) and Ground Granulated Blast Furnace Slag (Durocem).
http://www.indorama.co.in/

Koch Carbon, KOMSA, C. Reiss Coal
World leaders in trading, marketing and handling petroleum coke, coal, slag, cement, clinker, ocean freight, and related commodities
http://www.kochcarbon.com

Pensacola Testing Laboratories, Inc.
Geotechnical engineering, environmental drilling, construction materials testing of asphalt, concrete, soils, slag, flyash, cement, aggregates. NDT and hazwoper training.
http://www.pensacolatesting.com/

National Slag Association
Association of companies involved in the slag industry or related matters.
http://www.nationalslagassoc.org

Purimachos Fire Cement
Manufacturer of fire cement, refractory cement, rapid setting cement, plumbing products, sealants, mouldables, refractory coatings,and mastic.
http://www.purimachos.demon.co.uk

Whitehopleman Cement Consultants
Cement Industry Expertise to assist companies throughout the world in the improvement of their cement factory operations.
http://www.whitehopleman.com/

Sloss Industries Corp
USA. Diversified manufacturing company, active in slag wool, chemicals, and coke for foundries and blast furnaces. Slag bulk and loose wool, and processed fibers for insulation and reinforcement. Part of Walter Industries, Inc.
http://www.sloss.com/

Cement Test Equipment, Inc.
Cement Test Equipment, Inc. is a world-class supplier of laboratory instruments for testing well cements in accordance with API and ISO specifications and recommended practices.
http://www.ctetulsa.com/