** Sun Art Retail Group 6808.HK slips 7.3% to HK$1.78; set for biggest one-day pct decline since January 3
** Stock on track to snap three straight sessions of gains
** Chinese hypermarket chain's chairman Huang Ming-Tuan resigns with immediate effect, along with two directors
** Co appoints Julian Juul Wolhardt, co-founder and CEO of DCP Capital, as chairman; two directors also named
** YTD, stock drops 27.4%
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))