Hindustan Zinc has signed an MoU with Advantek Associates and Aero Eagle Automobiles to explore green hydrogen and other clean energy solutions across its mining operations, the company said in a regulatory filing to stock exchanges. The world’s largest integrated zinc producer and one of the top ten silver producers globally said the partnership will look at hydrogen-based technologies for use in underground mining, heavy earth-moving machinery, surface vehicles and generators. If the underground mining application moves ahead, the company said it would be the only player attempting to deploy hydrogen fuel technology in that setting.