LafargeHolcim
Cemex
Graymont
Nittetsu Mining
HeidelbergCement
Italcementi Group
Schaefer Kalk
Sumitomo Osaka Cement
NALC
Independent Limestone Company
Todaka Mining
Carmeuse
Lhoist
Eurocement
Mitsubishi Materials
Indiana Limestone Company
Atlantic Minerals Limited
Elliott Stone Company
Fels-Werke GmbH
Mississippi Lime Company
Anhui Conch Cement
South Cement
China Resources Cement
BBMG
Jiangxi Wannianqing
Sanyou-Group
Shougang Lukuang
Dalian Limestone
Sichuan Golden Summit
Polycor