In the postwar period of 1946 and 1947, the name 'Ms Eng Ming Ching' frequently appeared in the front pages of many newspapers as an open representative of the non-illegal Communist Party of Malaya (CPM).

She was reportedly invited by many groups in Ipoh, Teluk Anson (now Teluk Intan), Tanjung Malim, Cheras (in Kuala Lumpur) and other places to speak about issues like the role of Chinese Malayan women and intellectuals in the struggle for independence or law and order in postwar Malaya, or to officiate public functions and rallies on behalf of her party which still enjoyed the status and prestige of victorious Allied powers.

In 1946, for example, she was CPM's representative in Ipoh's public rallies welcoming the visit of the leader of India's independence movement, Jawaharlal Nehru to the capital of Perak. At that time, India was officially still a British colony and it was only a year later that independence became a reality.

Eng's public speaking skills, personal charm and beauty and sense of mission did not go unnoticed by the British intelligence.