VNA reported that the congratulatory message from the Central Committee of the Lao People's Revolutionary Party to the Central Committee of the Communist Party of Vietnam stated: "Over the past 95 years, especially after nearly 40 years of carrying out the renovation process, under the leadership of the Communist Party of Vietnam, the Vietnamese people have achieved great, comprehensive and historic achievements, contributing to the Socialist Republic of Vietnam maintaining political stability, strong national defense and security, ensuring social order and safety, rapid and continuous economic development, people's lives increasingly improved, and the role and position of the Communist Party of Vietnam and the Socialist Republic of Vietnam increasingly prominent in the region and internationally.

We firmly believe that the Party, State and people of Vietnam will continue to gain new and greater victories and achievements in organizing the implementation of the Resolution of the 13th National Congress of the Communist Party of Vietnam and preparing to organize Party congresses at all levels, towards successfully organizing the 14th National Congress of the Party."
The congratulatory message from the Central Committee of the Communist Party of China to the Central Committee of the Communist Party of Vietnam reads: “The Party and people of Vietnam, under the leadership of the Central Committee of the Communist Party of Vietnam headed by General Secretary To Lam, are constantly striving towards the goal of 100 years of the founding of the Party and the country, and towards the successful organization of the 14th National Congress.
The Communist Party of China always starts from a strategic height and long-term vision, attaches importance to developing the relationship between the two Parties and the two countries of China and Vietnam; is willing to work with the Communist Party of Vietnam to well implement the important common perception of the two Parties' top leaders; on the basis of the "16-word" motto, the "4 good" spirit and the overall goal of "6 more", promote the building of the China-Vietnam Community of Shared Future of strategic significance to continuously go into depth and substance, bringing more benefits to the people of the two countries, making greater contributions to the cause of peace and progress of mankind".
The congratulatory letter from President of the Cambodian People's Party Hun Sen to General Secretary of the Central Committee of the Communist Party of Vietnam To Lam reads: "On the occasion of the 95th anniversary of the founding of the Communist Party of Vietnam, on behalf of the Cambodian People's Party and myself, I would like to send to the General Secretary and all leaders of the Communist Party of Vietnam my deepest and warmest congratulations... I would like to express my satisfaction with the continuous development of the traditional friendship, solidarity and comprehensive cooperation in all fields between the Parties, Governments and peoples of the two countries under the motto "Good neighbors, traditional friendship, comprehensive cooperation, long-term sustainability".
The congratulatory letter from First Secretary of the Communist Party of Cuba, President of the Republic of Cuba Miguel Diaz-Canel Bermudez and General Raul Castro Ruz to General Secretary of the Central Committee of the Communist Party of Vietnam To Lam stated: "The revolutionary practice of the Communist Party of Vietnam, especially the Doi Moi policy implemented since 1986, has great significance in the process of building socialism in Vietnam and is a shining example for the international communist movement."
The congratulatory message from General Secretary of the Central Committee of the Workers' Party of Korea Kim Jong Un to General Secretary of the Central Committee of the Communist Party of Vietnam To Lam reads: "Since its founding, the Communist Party of Vietnam with its wise and talented political staff has achieved many victories in the struggle for national independence and the building of a socialist regime... I firmly believe that the traditional friendship between our two Parties will continue to develop in the common struggle to protect and preserve the socialist cause."