(ShareCast News) - Shares in mining company Scotgold rose after the company upgraded estimates for its Cononish gold project in Tyndrum.At 0933 BST shares in the AIM stock were up 8.27% to 0.812p, making it one of the fastest risers of the day.Scotgold estimated 555,000 tonnes of both gold and silver to come out of the mine, up 36% from 200,000 tonnes estimated in 2013.The mining firm said the forecast boost came off the back of new estimates published in January.Scotgold was working out financing options to bring the project into production.