DTH Tyre Retreading / Tyre Rebuilding DTH is the one of leading tyre retreading company in Sri Lanka and has more than 3 decades of experience in the field of retreading. The company has seen year-on-year sales growth of 30% for the last two years and is projecting sales growth of 50% for the next year. DTH works closely with its customers to develop new products to meet changing requirements. It has also developed specialized rubber compounds to match vehicle operating conditions in Sri Lanka.