CAT says room and pillar is like landlines — its days are numbered

Caterpillar (NYSE:CAT) is moving away from room and pillar mining, a business that services mostly coal companies in the US, as the world’s largest heavy machinery maker thinks the technique is obsolete. Speaking to during MINExpo 2016 last month, product manager for large mining trucks Sudanshu Singh said that very few mines currently employ[…]