Feb 18 Chappy Hakim, the chief executive of miner Freeport-McMoran Inc’s Indonesian unit, has resigned, the company said on Saturday, after the parent firm declared force majeure on copper concentrate shipments from its Grasberg mine in Papua. Freeport, which has been negotiating with the Indonesian government after halting exports due to new mining rules, said on Friday it could not meet contractual obligations for copper concentrate shipments from the giant mine following a five-week export stoppage.