** CK Hutchison 0001.HK rises 2.5 to HK$53.3; set for biggest one-day pct rise since July 24

** Stock hits highest since July 29; top pct gainer on Hang Seng Composite Index tracking conglomerates .HSCIC

** Conglomerate posts 11% y/y jump in H1 underlying profit on post-IFRS 16 basis vs UBS forecast of 6% rise

** Says $22.8 billion ports business sale has "reasonable chance" of going through after plan to add major Chinese strategic investor to consortium amid Sino-U.S. trade tensions

** Group co-managing director says talks taking much longer than expected, but was "not particularly troublesome" because ports business delivered stronger-than-expected earnings, cash flow this year

** YTD, stock up 27.4%

(Reporting by Donny Kwok)

((donny.kwok@thomsonreuters.com))