** Shares of lithium producer Sayona Mining SYA.AX slide
as much as 20.8% to A$0.099, their lowest since Aug 9, 2021
** Stock set for worst day since July 2020, if losses hold
** Co says Brett Lynch has resigned as managing director and
CEO
** Says James Brown, currently a non-executive director, has
been appointed interim CEO
** More than 121.6 mln shares change hands, 3.1 times the
30-day avg of 39.2 mln shares
** SYA stock is top loser in ASX 200 benchmark index .AXJO
** As of last close, stock down 34.2% YTD
(Reporting by Himanshi Akhand in Bengaluru)
((Himanshi.Akhand@thomsonreuters.com;))