TAMIN is mining and processing Vermiculite, a non-metalic versatile mineral at Sevathur Village, Thirupathur Taluk, Vellore District to suit various needs in building, Horti-Agricultural and Bio-technological activities.Different Grade sizes available:1. Grade-1 – above 12mm2. Grade-II – 6mm to 12mm3. Grade-III – 3mm to 6mm4. Grade-IV – 1mm to 3mm5. Grade-V – below 1mm and fines powerTAMIN has a Vermiculite Exfoliation Plant at Ambattr Industrial Estate, Chennai.