Hindustan Zinc (HZ) reported EBITDA tad below our estimates by 3% due to lower volumes. While, earnings beat consensus estimates by 6%. HZ missed its guidance on volumes and ore grade over last 3-4 years due to weaker than assessed ore grade. Ore grade has fallen by ~30% in last 5 years due to lower grade of new mines and reduced share of Rampura Agucha (RA) mines. As the new shafts at both RA and Sindesar Khurd (SK) mines...