X0708 D LIVE 0002145181 Mason/Avant Infrastructure Fund II LLC 7474 N. FIGUEROA ST. LOS ANGELES CA CALIFORNIA 90041 323-254-3072 DELAWARE None None Limited Liability Company true 2026 Brent Mason 7474 N. Figueroa St Los Angeles CA CALIFORNIA 90041 Executive Officer Thomas Mason 7474 N. Figueroa St Los Angeles CA CALIFORNIA 90041 Executive Officer Commercial Decline to Disclose 06b false true false true false 50000 3000000 0 3000000 true 0 0 0 0 0 false Mason/Avant Infrastructure Fund II LLC David Utley David Utley Attorney In Fact 2026-07-14