PT Indonesia Asahan Aluminum, the only smelter in the country, plans to operate at full capacity this year as low electricity costs help the producer make a profit even after a drop in metal prices. The smelter in northern Sumatra produced 242,000 metric tons of aluminum last year and will have similar output this year, Yukio Minbu, general manager at Nippon Asahan Aluminium Co., said in an interview.…