India, Jan. 14 -- Billionaire Gautam Adani's group and South Korea's Posco have signed an initial pact to explore business opportunities to invest about $5 billion on projects that include setting up an integrated steel mill in Gujarat, the two firms said on Thursday. The non-binding pact, if it fructifies, will give Adani Group, which has recently announced forays into areas like petrochemicals and hydrogen generation, an entry into steel manufacturing. For Posco, it will fulfil its long-held ambition of having a large steel unit in India to cash in on growing demand here.P11...