The Zijin Mining Group, one of China's biggest gold producers, is being sued for...US $25.8 million...after a tailing dam collapsed and killed 22 people last year, the official Xinhua news agency said...800 lawsuits had already been filed by residents and claims against the company could eventually amount to 300 million yuan…A total of 523 homes were destroyed...A government investigation into the disaster in December placed the blame firmly on the company, which was accused of breaching dam construction regulations...