Kurcuma is a thrash and groove metal band from Don Bosco, Buenos Aires, formed in 2021. They released two demos in their debut year — "Ojos Rojos" and "Las Puertas" — and followed up with a self-titled EP in August 2022 available on Bandcamp. The band operates as an independent act rooted in the Buenos Aires underground metal scene.

Leprosy is a thrash/death metal band from Goiânia, Goiás, Brazil, originally formed in 1989 and revived by its original lineup in 2019 after a 24-year hiatus. Taking influence from bands like Death and Protector, the group recorded new material during the pandemic and released the full-length "Death to This World" in November 2021. The album features tracks such as "Schizophrenia" and "Infernal Massacre" and received positive reception for its dark, aggressive atmosphere.

Lethal is a thrash/heavy metal band from Florida, Buenos Aires, founded in 1988 by former members of Legión, that quickly became one of Argentina's most recognized metal acts, opening for international headliners including Sepultura, Pantera, and Anthrax. Their debut album "Bienvenidos a mi reino" (1990) featured the track "King of the Ring," voted best Argentine song of the year by readers of Madhouse magazine, and they followed it with notable releases "Maza" (1994) and "Efecto tequila" (1996). After a hiatus, the band reformed and has continued releasing music, including "Inyección Lethal" (2010) and "Somos thrash" (2023).

Makabro is a heavy/thrash/power metal band from Villa Regina, Río Negro, formed in 2014 and active in Argentina's Patagonian underground scene. The band self-released a six-track studio EP in 2022, available on Spotify as "Full EP Estudio 2022", documenting their progressive thrash sound.

Mamut is a Buenos Aires thrash and groove metal band featuring vocalist Theo Peltzer, guitarist Facundo Robles, and bassist Gerardo Cei, known for fusing classic and modern metal with Latin American folk rhythms. The band recorded their 2023 album 3 — an eight-track release — at Romaphonic Studios in Buenos Aires in December 2022.

Manifiesto is a thrash and heavy metal band from Morón, Buenos Aires, led by guitarist Cristian González, with a catalogue that spans from their first album Insano (2006) through La Obra Maestra del Odio (2015) to La Ley del Talyon (2024). After nearly a decade between studio records, the band's 2015 comeback album was reviewed across Argentine metal media including Metal-Daze Webzine and Metal Argento, cementing their standing in the local scene.

This Belo Horizonte thrash/death metal band took their first stage alongside Chakal and Aamonhammer at the Black Death Festival in 1987, placing them among the earliest acts in the formative Brazilian extreme metal underground. The band later renamed themselves The Mist in 1988 and continued recording and performing under that name through the 1990s before eventually reviving.

Formed in Taquara in 1993, Megalon built their sound around the savage intersection of death and thrash metal, channeling science fiction themes through a battery of demos — "Hands of God" (1998) and "Gattaca" (2000) — that drew coverage in national outlets like Rock Brigade magazine. The band was also a driving organizational force behind the local Thrash Attack festival and is documented in the regional rock history documentary "As Pedras do Rio Ligeiro."

Melabstra, short for Melodía Abstracta, is a metal band from Medellín, Colombia, active since 2012. The band has built a catalogue spanning multiple releases including the debut EP Abstracción religiosa dualidad imparcial (2012), the full-length El fruto de la discordia (2020), and the album Egocentrismo (2024), with lyrics exploring themes of religion, death, and conflict.