Shares of Hindustan Copper (HCL) hit an over eight-year high and were locked in the upper circuit of 10 per cent at Rs 189.20 on the BSE in Monday s session on expectations of improved demand outlook. The stock of the state-owned copper company has rallied 25 per cent in the past three trading days. It was quoting at its highest level since November 2012. Till 10:28 am, a combined 4.84 million equity shares had changed hands on the counter and there were pending buy orders for 1.6 million shares on the NSE and BSE. At the same time, the S&P BSE Sensex was up 0.67 per cent at 49,536 points.