One of the oldest extreme metal bands in Paraná, Morthal trace their origins to 1987 and are often cited as the pioneer of the death/thrash style in the state, performing shows as far as Brasília and Asunción in the mid-1990s and releasing a split LP with Tumulto in 1992 that drew national attention in the underground press. After roughly 18 years of inactivity, the band reformed with vocalist Nilton Bobato and guitarist Zepa Costa among its ranks, picking up where their gritty, war-themed death/thrash left off.

Morthifera is a thrash metal band formed in 2010 in González Catán, Greater Buenos Aires, by drummer Cristian Romero along with guitarist Sergio Noriega. The band built their name on socially charged, working-class-rooted thrash, releasing the EP Régimen de Sangre in 2011, the full-length Basurero Humano through Icarus Music in 2016, and the independently released Apócrifo in 2019.

Mortifyzer is a metal band from Santiago, Chile, formed in 2019 and working across thrash, death, and groove metal. They released their debut EP Nuclear Dust in January 2019, their first recorded statement as a band.

Mortuário A.D. channels the raw, bestial energy of early Brazilian extreme metal through a death/thrash lens, citing Sepultura, Sarcófago, Mutilator, Vulcano, Obituary, and Hellhammer as touchstones. Their second release, "Die in Pain," dropped on Halloween 2024 and captures the horror-soaked ferocity the band has built its identity around.

Motorcrush play a direct brand of heavy and thrash metal rooted in the classic American acts — Metallica, Megadeth, and Pantera are the most audible touchstones. Their debut demo 'I Control You' introduced the band with six tracks covering themes of war, personal freedom, and societal control.

Muerte Akción is a crossover thrash band from Santiago, Chile, formed in 2012 by guitarist/vocalist Rodrigo de las Riberas, bassist Sandino Muñoz, and drummer Rodrigo Herrera. Their politically charged lyrics tackle themes of colonialism, inequality, and Chilean social tensions, with releases spanning the 2012 EP through the albums Fuego (2014), II (2015), and Dominio (2022).

A stalwart of the Goiânia metal scene, Mugo mixes death metal heaviness with thrash energy and pronounced groove, drawing comparisons to Obituary and At the Gates. Their discography spans multiple full-lengths including "Go to the Next Floor" (2009), "Race of Disorder" (2017), and "Tempest" (2019), each refining their brand of extreme metal with elaborate harmonies.

Municion is a black/thrash metal band from Santa Fe, Argentina who built a live reputation sharing stages with international acts including Aura Noir, Mystifier, and Tsjuder. The band released the EP "Black, Speed & Evil" in 2015 through Execracion Distro before issuing their debut full-length "Fukk Off In Hell" in 2021 via Alkolik Holocaust Records.

A supergroup side project drawing members from Sepultura, Threat, and Nitrominds, Musica Diablo united Sepultura frontman Derrick Green with guitarists André NM and André Curci for a pure old-school crossover thrash assault. Their self-titled debut from 2010 packs eleven tracks of raw, São Paulo–forged aggression, produced by Rafael Ramos; the band dissolved the following year after Green refocused on Sepultura.