LONDON (Dow Jones)--U.S. engineer CH2M HILL Cos. Ltd. Tuesday offered to buy smaller U.K. peer Scott Wilson Group PLC (SWG.LN) for about GBP189 million, trumping an earlier offer by rival U.S. firm URS Corp. (URS). CH2M said it offered to buy Scott Wilson for 245 pence a share, a 16% premium to the 210 pence a share offer put forward Monday by URS. Scott Wilson, which recommended Monday shareholders accept the URS offer, said Tuesday URS has the right to match CH2M's offer. -By Jason Douglas, Dow Jones Newswires; 44-20-7842-9272; jason.douglas@dowjones.com (END) Dow Jones Newswires June 29, 2010 02:13 ET (06:13 GMT)