Racial remarks In 2011, Nga Kor Ming used the term "
metallic black" to describe Menteri Besar of Perak
Zambry Abdul Kadir, during political rallies in Kamunting. Nga Kor Ming apologised for his
anti-Indian racist remarks for calling Zambry a "metallic black person". It was obvious that he was referring to Dr Zambry's skin colour of the Indians when he uttered the phrase in various speeches as seen in
YouTube, which he subsequently denied. The apology was accepted by DAP National Chairman
Karpal Singh, however, it is believed that no action was taken although DAP was known as a multi-racial party and its leaders were not known to pass racist remarks against any community or race until the
racial slur by Nga Kor Ming.
Tailorgate In 2012, Nga Kor Ming sued blogger
sekupangdua, whose true identity is Ahmad Sofian Yahya at Ipoh High Court for exemplary damages, aggravated damages and an order of injunction against further publication of defamatory words. It has been revealed that his wife's company was previously awarded the contract to make lounge suits for the councillors of
Ipoh City Council (MBI) when
Pakatan Rakyat (PR) was ruling Perak. DAP Perak stresses that MBI's award of tailoring contract was done by the council's tender board by way of open tender, it is claimed that Nga did not interfere in the committee overlooking the open tender process. The subject matter is a contract for 24 lounge suit for MBI councillors at the price of RM650 each and a total price of RM14,400.00. Nga's wife's company, which submitted a bid for RM650 per suit, predictably ended up being awarded the job sometime in 2008. The open tender involved 4 other tailor companies and Nga's wife's company Ethan and Elton was awarded the contract despite being the most expensive at RM650, the lowest bidder Goodman Tailor having tendered for RM450. The DAP disciplinary committee cleared Nga of any power abuse in the awarding of a lounge suit contract to his wife's company.
Speech controversy In May 2018, Nga Kor Ming's action of ridiculing
Mahathir Mohamad by touching on the issue of his mortality, has been deemed rude, uncouth, extreme and disgusting, and runs contrary to the customs and norms of the people of Malaysia.
School building named after him In 2019, the naming of a new three-storey building of SJK (C) Sin Min, a
Chinese primary school in Simpang, Perak, after Nga has raised a controversy. The
3D Chinese characters for 'Nga Kor Ming Building' affixed on the new block to honour Nga for helping to secure a RM220,000 government grant for the school, was questioned and condemned by certain quarters. Nga dismissed criticism over the polemic and pointed out it was the school board's decision to pick his name and he did not make a request nor give instruction for the school to do so.
Criticism of Malaysian labor in Singapore On 27 October 2022 in Johor, Nga Kor Ming sparked another controversy in which he publicly claimed that
Malaysians would be forced to wake up early to work in Singapore and come home late at night if
Barisan Nasional wins the election. He further stated that if
Pakatan Harapan wins the general election, Singaporeans would flock to Malaysia as foreign labourers instead of the other way round. Following that statement, he had clarification that he did not wish to offend anyone with his remarks and he claimed that the opposition had taken his comments out of context and he meant that Malaysia should maintain a mutually beneficial relationship with
Singapore. ==Election results==