** Telecom co Tuas gains as much as 3.8% to record high of A$6.310, tracking U.S. peers higher

** Citi raises PT to A$7.10 from A$5.55; maintains "buy"

** Sees continuing and potential additions to mobile and broadband subscriber base to outpace market

** Raises FY25 EBITDA by 5%, driven by higher broadband contribution and lower costs

** Reduces operating cost assumptions, increasing EBITDA margin forecast

** Says TUA has captured 3%-4% of users coming off rivals' lock-in contracts

** Stock up 90% this year, as of last close

(Reporting by Nichiket Sunil in Bengaluru)

((Reuters.Briefs@thomsonreuters.com))