European shares steady; M&A hopes lift telecoms, Alstom
* FTSEurofirst 300 up 0.1 pct, stays below 6-1/2 year high
* Global growth worries hit mining stocks
* Alstom gains as Hitachi says may join bid for energy unit
By Blaise Robinson
PARIS, June 12 (Reuters) - European shares were steady on Thursday as a World Bank cut in global growth forecasts offset merger hopes in the telecom sector and news of a new bidder for Alstom's energy business.
BNP Paribas was also in the spotlight, gaining 1.1 percent after the bank, which is wrestling with U.S. authorities over a potential $10 billion fine, said its chief operating officer will step down at the end of the month.
By 0820 GMT, the FTSEurofirst 300 index of top European shares was up 0.1 percent at 1,392.81 points, hovering below this week's 6-1/2 year high.
The World Bank growth forecast cut prompted investors to book profits from recent gains on Wall Street overnight, while on Thursday, London copper prices dipped towards one-month lows.
Miners Rio Tinto and BHP Billiton both fell 2.2 percent as investors fretted about demand in top consumer China amid government efforts to boost the economy. Continuación...