Tamil Nadu Minerals Ltd. Popularly known as TAMIN, is a wholly owned blue chip company of the Government of Tamil Nadu. Started in 1978. TAMIN is engaged in the exploitation, processing and marketing of granite and other minerals such as limestone, vermiculite, quartz, feldspar, silica sand, graphite etc. TAMIN entered the international granite market in the year 1979 and has secured a steady market for dimensional blocks of black and other colour materials in countries like Japan, Germany, Italy, Australia, UK, Switzerland, Holland, USA etc. TAMIN also exports polished granite slabs, building slabs and tiles in several attractive colours, wall panels and monuments of various designs conforming to International Standards. TAMIN has also been marketing granite cubes with sides measuring 6 cm to 12 cm.