Kala Sumeriah is a stoner/groove metal band from Mendoza, Argentina, featuring vocalist Gus Banco Pravata, guitarist Edu Palladino, bassist Martin Fumarola, and drummer Alvaro Garcia Bensi. Their fourth studio album, Wormoboros, was released on April 27, 2022, produced by the band and recorded at The Arrival Studio.

Kariwa is a groove metal band from Bogotá, Colombia, formed in 2013 with a lineup that has included members of Goretrade and Luciferian. The band released two full-lengths — "10.000 años" (2016) and "No creo que a dios le importe" (2018) — and appeared on the True Metal Subversion 8 compilation.

Khannas is a southern/groove metal band from San Rafael, Mendoza, Argentina, whose debut release was the EP Lengua de Diablo, issued on January 31, 2016. The four-track EP — containing "Bordeando abismos," "Resiste el olvido," "Memorias latentes," and "Lengua de diablo" — was recorded, mixed, and mastered at Aire Records by Facundo Lucero, with all compositions written by Fernando Ferre.

Killin'Ground is a thrash/groove metal band from Fortaleza, Ceará, Brazil, formed in 2019. Their debut release, The Weight of the Crown (January 2019), showcases a sound rooted in aggressive thrash with groove-oriented rhythms, featuring tracks such as "Another Day in Hell." The band also contributed to the 2022 compilation The Gates of Brazilian Metal Scene, released by MS Metal Records.

Kinoglass is an experimental thrash/groove metal trio from Presidente Prudente, São Paulo, Brazil, formed in 2020, comprising Luis Farrús (bass/vocals), Fernando Volpin (guitars/keyboards), and Guilherme Sala (drums). They released the nine-track album A Man With A Camera in March 2020, followed by Se A Carapuça Servir in February 2024, with both records blending thrash aggression with psychedelic and avant-garde influences rooted in 1970s heavy rock. Their lyrical themes address social criticism, anti-fascism, and personal struggle.

Krossover is a thrash and groove metal band formed in August 2013 in Reconquista, Santa Fe, Argentina. The band contributed the track "Inhumano" to the regional compilation "Paraná Bandas Oficial EP 7" in August 2016, building a following in the northeastern Argentine metal underground. They maintain an active presence on SoundCloud and Bandcamp as an independent act.

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.