ICICI Securities Ltd | Retail Equity Research Hindustan Zinc (HZL) reported a healthy set of Q2FY17 numbers wherein topline, EBITDA and PAT came in higher than our estimates. The better-than-expected performance was driven by higher volumes After adjusting for excise duty, net operating income for the quarter came in at | 3525.7 crore (up 39.3% QoQ, higher than our estimate of | 3166.6 crore). Zinc sales volumes were at ~148000 tonnes (up 23.3% QoQ, higher than our estimate of 140000 tonnes). Lead sales volumes...