...workers [at Shougang Hierro Peru iron ore mine, owned by China's state-run steel maker Shougang Group] complain of health risks, low wages and frequent accidents, some of them fatal...Shougang Hierro Peru declined a request for an interview...Locals and Peruvian environmental groups also accuse Shougang of tipping chemical waste into the sea, killing fish. Union officials say there were 450 accidents at the mine last year, including 22 that left workers disabled. Five workers have died since 2002 in accidents...