According to Pangang, in the first four months this year, its pig iron, crude steel, fine vanadium slag and titanium concentrate output poised at 3.1744 million tons, 3.0317 million tons, 0.1118 million tons and 0.176 million tons respectively, hiked 324.8 thousand tons, 203.2 thousand tons, 15 thousand tons and 2400 tons separately.