** CK Hutchison HKEX:1 slips 1.1% to HK$44.7; on track for biggest one-day pct fall since April 24
** Stock set to snap two consecutive sessions of gains
** HK-based conglomerate says its closely monitored ports deal with BlackRock-led consortium would strictly adhere to all required compliance standards
** Notes, "This transaction would never be carried out under any illegal or non-compliant circumstances"
** Adds further details about the deal will be provided at co's annual shareholder meeting on May 22
** YTD, stock up 8.1%