** Shares of BYD Electronic (International) Co 0285.HK drop 7.8% to HK$24.2, their lowest level since April 2024
** Stock on track for the biggest one-day pct decline since October 17, 2025
** Chinese mobile handset components maker said its profit attributable for quarter ended in March plunged 95.5% y/y to 27.8 mln yuan ($4.07 mln) due to currency exchange losses, with changes in product structure also hitting gross profit margin
** YTD, stock down 21.7%, while benchmark Hang Seng Index .HSI up 1.7%
($1 = 6.8366 Chinese yuan)
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))