Extremauncion is a groove and thrash metal band from Clorinda, in the northern Argentine province of Formosa, a region with a small but active metal scene anchored by events such as the Clorinda Rock Metal Fest. The band's recorded output includes the demo Corre o muere, documented in the Encyclopaedia Metallum, and further releases catalogued on Discogs. Their city of origin, Clorinda, sits on the Paraguayan border, giving the band one of the more geographically remote bases in the Argentine metal underground.

Extreme Hate were a death metal/grindcore band from Belo Horizonte, Minas Gerais, active from 1999 until their eventual split-up. The band recorded a series of demos between 2003 and 2006 — including a 2005 session at Barata Studio — which were later compiled on the release Open Wound / Demo(n)s. Their ferocious blend of deathgrind placed them within Belo Horizonte's storied extreme metal underground.

Exumação de Anneliese are a raw black metal project from São Paulo, formed in 2020, whose members operate under the pseudonyms Fantasma do Acaso, Aparição Flamejante, and Presença Imaterial. The band debuted with Negações ao Absurdo in 2020 and released a second full-length the same year before continuing to expand their catalog with O abismo olha de volta (2021) and Monastério do irracionalismo (2024). Their sound draws on lo-fi black metal aesthetics infused with a distinctly introspective, nihilistic Portuguese-language sensibility.

Exylle is a crossover thrash metal band from Curitiba, Paraná, Brazil, active since around 2014–2016. Their 2021 EP "Sangue nas Ruas" (Blood in the Streets) consists of five tracks entirely in Portuguese, sharpening the band's political and social commentary with a heavier hardcore influence alongside their thrash and death metal core. They have performed at festivals including São José Rock Festival and Brutal Fest in Joinville.

Exício is a grindcore band from São João del-Rei, Minas Gerais, formed in late 2016 with a mission to fuse the most extreme elements of metal and punk under themes of misanthropy, nihilism, and social decay. The band released their debut demo, Mórbida Existência, in May 2018.

Eyjafjallajökull is a Brazilian raw black metal project that has operated on a DIY underground philosophy since 2013, releasing material through Dipsomaniac Records. Their 2013 EP "Donasdogamatastos" showcases a primitive, lo-fi approach with lyrics in Portuguese covering anti-nationalist themes. The band self-describes their style as "Trve & Kvlt Brazilian Anti-Nationalist Raw Black Fuckin' Metal."

Facas is a two-piece sludge metal band from Curitiba, Brazil, consisting of Jow (Jonathan Rissi) on guitar and vocals and Michael Wilseque on drums. Their 2020 self-titled album was recorded almost entirely live during two sessions at Estúdio Sabine in Curitiba, capturing seven tracks of hypnotic, hook-driven sludge and was released through Crocodilo Discos.

Faceless Empress is a stoner heavy metal band from Valparaíso, Chile, formed in 2022, drawing comparisons to Alice in Chains, Soundgarden, and desert rock acts like Kyuss and Dozer. The four-piece released their debut EP The Escapist in August 2024, produced and mixed at Magia Negra Studios.

Faces of Death is a thrash metal band from Pindamonhangaba, São Paulo, Brazil, whose 2023 album "Evil" was released through a partnership between Impaled, Master, Gerunda Produções, and Gate Of Doom labels. The ten-track record features founding brothers Laurence Miranda (vocals/guitar) and Sylvio Miranda (bass), with lyrics addressing topics including Brazilian political life, the 2013 Santa Maria nightclub fire, and serial crime. The band has announced a European tour for October 2026.