2012

In 2012, as a local player, Ng won the bronze medal for Hong Kong in the women's doubles at the Asian Table Tennis Championships. In the same year, she also participated in the women's team competition at the World Table Tennis Championships as a member of the Hong Kong team and won a bronze medal.

2013

In 2013, Ng won the U21 women's singles runner-up in the ITTF World Tour Grand Finals, which was the best result achieved by Hong Kong since it sent a team to participate in the ITTF World Tour Grand Finals for the first time in 2010.

2014

In 2014, the blossoming talent from Hong Kong, Ng gracefully transitioned into a more mature phase of her career. In February of that year, at the International Table Tennis Federation (ITTF) Platinum World Tour Qatar Open, she achieved a bronze medal in singles and a gold medal in doubles. Notably, in singles, she achieved victories over Singapore's top player and Three-Time Olympic medalist Feng Tianwei, Japan's renowned player and Silver medalist at the 2012 London Olympic Hirano Sayaka, and China's national team player 2014 Summer Youth Olympic Games Liu Gaoyang, showcasing her exceptional skill and determination. In doubles, she and her partner decisively defeated the China team of Liu Gaoyang and Liu Xi to claim the championship.

Later in May of the same year, she secured a bronze medal in the women's team event at the World Table Tennis Championships held in Tokyo, achieving the best result of only losing one match. Once again, she drew attention at the Asian Games held in Incheon, South Korea, where she, alongside Lee Ho Ching, brought home a bronze medal for Hong Kong, becoming the third generation of 'twin stars' in Hong Kong table tennis history, following in the footsteps of Chan Tan Lui/Qi Bao Hua and Li Ching/Ko Lai Chak.

2015

In 2015, she took a temporary leave from the sports scene, only to make a triumphant return two years later, rejoining the Hong Kong representative team to continue her journey of competing on behalf of her homeland.

2017

After rejoining the team in 2017, Ng achieved commendable results in both singles and doubles events at the International Table Tennis Federation World Tour Platinum event in India, securing bronze medals in each category. Following the singles event, she further earned a bronze medal with her team at the Asian Table Tennis Championships.

2018

In 2018, amidst the prestigious Table Tennis World Cup in London, UK, she boldly clinched a bronze medal, showcasing her resilience and skill. Throughout the year, her prowess shone as she triumphed in the doubles competitions at the International Table Tennis Federation World Tour events in Slovenia and Serbia. Adding to her accolades, she played an integral role in securing a bronze medal for her team at the World Table Tennis Championships in Halmstad, Sweden. Furthermore, at the highly anticipated 2018 Asian Games in Jakarta, Indonesia, held once every four years, she reaffirmed her talent by securing another team bronze medal, thus solidifying her position as a distinguished two-time consecutive Asian Games medalist.

2021

In 2021, emerging from the challenges of the pandemic, she made her comeback at the Qatar Asian Table Tennis Championships, where she reached the semi-finals but fell short against Japan, ultimately securing a well-deserved bronze medal.