 Shares of Chemours Co. CC, 0.09 jumped nearly 7 in the extended session Monday after the the chemicals company reported first-quarter earnings that beat Wall Street expectations, saying its outstanding quarterly performance reflects structural improvements and longer-term growth trends for some of its businesses. Chemours said it earned 234 million, or 1.43 a share, in the quarter, compared with 96 million, or 57 cents a share, in the year-ago period. 