All Barisan Nasional component parties have nominated Tan Sri Muhyiddin Yassin as the prime minister candidate, making the total number of MPs behind him 96.
MCA and MIC confirmed their support in a statement issued under the BN banner, just hours after Umno and PAS made a similar declaration.
Currently, Pakatan Harapan has all 92 MPs in its stable backing Anwar Ibrahim for prime minister.
Earlier, Parti Pribumi Bersatu Malaysia (PPBM) announced that it was nominating party president Muhyiddin as the next prime minister of Malaysia.