Tamilnadu Industrial Investment Corporation Limited · Tamilnadu Civil Supplies Corporation · Tamilnadu Police Housing Corpn. Ltd. · Tamilnadu Cements Corporation Limited · Tamilnadu Industrial Explosives Limited · Tamilnadu Small Industries Development Corporation Limited · Nilakkottai Food Park Limited · Perambalur Sugar Mills Limited · Tamilnadu Salt Corporation Limited · Tamilnadu Forest Plantation Corporation Limited · Tamilnadu Magnesite Limited · Tneb Limited · Tamilnadu Power Finance And Infrastructure Development Corporation Limited · Tamilnadu Adidravidar Housing And Development Corporation Limited · Tamilnadu Minerals Limited · Tamilnadu Sugar Corporation Limited