Hindustan Copper share price has increased by nearly 17 per cent as the stock has extended gains for seven straight sessions on June 30. In today’s trade the stock surged nearly 4 per cent to trade at an early high of Rs 285.95 apiece on the NSE. The stock gained after the company informed the exchanges that it has signed a Memorandum of Understanding (MoU) with Indian Oil Corporation Ltd (IOCL).