Original sentence: $100 million of the proceeds from this transaction were used to establish the aforementioned enviromental remediation fund.Department of Justice.Due to the historically low copper prices prevailing in late 2002, contemporary independent valuation reports show that Grupo Mexico paid a 20% premium to fair market value to acquire the Southern Peru Copper interest.Following the Asarco bankruptcy, Grupo Mexico's profits rose sharply (along with Asarco's and every other copper mining firm in the world), due primarily to the 500% rise in the market price of copper from January 2003 to today.Half of this increase occured in the 18 months immediately following Asarco's bankruptcy filing.In January 2003, Asarco and the Environmental Protection Agency set up a trust fund of $100 million to help pay for the company's environmental clean-up costs.In January 2003, nearly 3 years prior to the bankruptcy filing, Asarco sold its interest in Southern Peru Copper to Grupo Mexico for $765 million.This transaction was carefully reviewed and approved by the U
Edited sentence: A few months after Asarco's bankruptcy, Grupo México announced that net profits had doubled, in large part because of the removal of Asarco's environmental liabilities.In 2003, Asarco and the Environmental Protection Agency set up a trust fund of $100 million to help pay for the company's environmental clean-up costs.Prior to the bankruptcy, Asarco transferred much of its assets to a shell company set up by Grupo México