[7] In addition to their MTUC posts, David was also a five-term MP, while Zainal Rampak and Syed Shahir served spells in Malaysia's upper house, the Dewan Negara.

[10] In 2018, MTUC president Abdul Halim Mansor and secretary-general J Solomon traded barbs when supporting opposing coalitions in Malaysia’s general election.

[11] Solomon claimed that the Barisan National coalition was interfering in MTUC by getting Halim to endorse them, but at the same time, he urged members to vote for the rival Pakatan Harapan.

In September 2019, there was a tie in the election for MTUC president with Abdul Halim and Mohd Jafar Majid (National Union of Telekom Employees chief) ended up with the same number of votes.

[12] In August 2023, the Shah Alam High Court declared the 2022 MTUC triennial delegates’ conference null and void for violation of several provisions in its constitution.