Hot Chili Ltd (ASX:HCH) is preparing to add the La Verde open pit copper mine to its Costa Fuego copper-gold project in Chile, hoping to take advantage of its proximity to the latter, and location within the historic Domeyko mining district. La Verde – which is located 30 kilometres south of Costa Fuego, in Chile’s Atacama region – is made up of historical open pit workings, and has a history of private interests exploiting its shallow porphyry copper oxide mineralisation, with the latter occurring across a strike extent of around 800 metres, with widths of up to 200 metres and depths of up to…