** Shares of Mainfreight MFT.NZ slip as much as 0.9% to
NZ$69.76, their lowest level since Sept. 28
** The NZ-based global logistics provider says estimated
profit before tax for HY25 declined 9.3% to NZ$158.5 mln ($97.27
mln)
** Adds, estimated revenue for HY25 improved 8.5% to NZ$2.55
bln
** Says U.S. East Coast and Gulf Coast Port issues will
create congestion issues
** Shares up 0.8% YTD as of 0206 GMT
($1 = 1.6295 New Zealand dollars)
(Reporting by Echha Jain in Bengaluru)
((Echha.jain@thomsonreuters.com))