Mali has proposed revisions to its mining law that would expand the government’s stake in gold mines to 25 percent from 20 percent . . . the revisions would also lower income taxes for miners to 25 percent from 35 percent . . . Mali is the third-largest gold producer in Africa after South Africa and Ghana . . . major foreign companies that operate mines in Mali include Australian Resolute Mining Limited, Canadian Iamgold Corporation, British Randgold Resources, and South Africa-based Anglogold . . . the government plans to give its increased stake in mines to local companies . . . all revisions would have to be approved by Mali’s National Assembly. . . Mali received increased revenues from gold of almost 20 percent in 2011 after gold prices rose 10 percent . . .  Mali relies on gold for 15 percent of its gross domestic product . . . although the revisions to the mining law reflect a global trend of developing nations to increase their share of mining revenues, the changes in tax rules could prompt renewed foreign investment, especially if the European debt crisis continues.