 Brazilian petrochemical firm Braskem SA reported on Wednesday a net loss of 777 million in the first quarter compared with a profit of 243 million a year ago, as foreign exchange oscillations led to higher financial expenses. The company said financial expenses grew to 1.332 billion in the quarter ended March 31 from 243 million a year ago, given the depreciation of the Brazilian real and the Mexican peso against the U.S. dollar. In April, Braskem revised its capital expenditure forecast in 2020 to 721 million from around 600 million, as part of its strategy to preserve cash. 