Sigma Lithium Resources announces the granting of stock options and restricted share units to certain officers, directors, key employees and key service providers. A total of 374,000 options were granted, as follows: 174,000 to Mr. Guilherme Guimarães; 50,000 to Mr.Carmelo Marrelli; 50,000 to Mrs. Jo-Anne Archibald, 50,000 to Mr. Gregory Lear and
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