** U.S.-listed shares of miner Sigma Lithium SGML.O
SGML.V down 9.6% at $27.01
** Stock hits lowest in nearly nine months
** Reuters reports that SGML's chief operating officer,
Brian Talbot, has left the company after joining the role last
year
** In August, company had named Caio Araujo as its new CFO
** More than 3.9 mln shares traded, more than three times
their 25-day moving avg
** SGML, a take-over target, had sued its former co-CEO
Calvyn Gardner in August, accusing him of stealing trade secrets
to undermine the company's effort to sell itself
** Including session's losses, stock down 4.4% YTD
(Reporting by Sourasis Bose in Bengaluru)
((Sourasis.bose@thomsonreuters.com))