Lafarge on Thursday said its $75-a-share cash offer to buy out minority shareholders in Lafarge North America Inc. was "fair". 
 
The world’s biggest cement maker this week launched a tender offer for the 46.8 per cent it does not already own in its North American business as part of a $3bn offer that expires on March 20. 
 
The move is aimed at streamlining the group’s operations and enhancing earnings. 
 
"We have just launched our offer and we think the price is fair and reasonable," Chief Executive Bruno Lafont told a press conference. 
 
Lafont declined to say whether the company would consider raising its buy-out offer.