GBM Resources Ltd (ASX:GBZ) has signed a $12 million agreement with significant shareholder Wise Walkers to advance the Twin Hills gold project in Queensland’s Drummond Basin. According to the long form farm-in agreement signed between the two companies, GBM will receive $6 million in cash. Wise Walkers will sole fund further exploration at the play – to the tune of another $6M – over an 18-month period to earn a 70% interest in it. GBM would continue to hold a 30% interest up to the decision to mine Twin Hills, which holds a combined resource of 23.11 million tonnes at 1.3 grams per tonne (g/…