[1] The Overseas Executive Committee was the only body of the CPV left intact after increased repression by the French authorities in Indochina.

His wife, Nguyễn Thị Minh Khai, also played an important role in the Party in its early stages.

Some time later, he began work at the Ben Thuy match factory and was dismissed for mobilizing workers to fight for their rights against their exploitative employers.

[2] In January 1924, he and 10 youths, including his village friend Phạm Hồng Thái, went to Thailand, then crossed to Guangzhou, China.

Under the direction of the Comintern, in March 1934, in Macau, the Overseas Commission of the Indochinese Communist Party was established, in which he served as Secretary.

The conference adopted a Political Resolution and the Resolution on Organizational Matters which detailed the organizational structure and tasks of the Overseas Commission of the Indochina Communist Party: As Secretary of the Overseas Commission, Lê Hồng Phong was the de facto General Secretary of the Indochina Communist Party.

In July 1935, Lê Hồng Phong led the Party delegation to the 7th Congress of the Communist International in Moscow.

In March 1938, he attended the Central Conference in Hóc Môn, which decided to establish the "Indochinese Democratic Front".

He married Nguyễn Thị Minh Khai, a female comrade who studied at Phương Đông University.