The 19th National Congress of the Communist Party of China (CPC) is of great significance as its success will contribute to China's modernization under the banner of socialism with Chinese characteristics, said a senior member of the Communist Party of Vietnam (CPV).

The congress, China's most significant political event in five years, opened Wednesday in Beijing. It came at the decisive stage in building a moderately prosperous society in all respects and a critical moment as socialism with Chinese characteristics has entered a new era.

Thus it has a historic significance to the CPC and the Chinese people, Hoang Binh Quan, head of the Commission for External Relations of the CPV Central Committee, told Xinhua in an interview on Tuesday.

Quan spoke highly of Chinese President Xi Jinping's leadership of the CPC, saying that he "has led the Chinese people to gain many important achievements in socio-economic development, and has heightened China's role and status in the international area."

"We sincerely wish the 19th National Congress of the Communist Party of China a success," said the CPV dignitary.

Led by the CPC, China will make bigger achievements in transforming itself into a modern, wealthy, democratic, civilized and harmonious socialist country, he said.

Relations between Vietnam and China will be more vigorous after the congress, he said, noting that ties between the two parties have grown stronger and gained many significant achievements.

High-level contacts between the two parties and the two countries have defined the framework of the comprehensive strategic cooperative partnership between the two countries, Quan said.

With the strategic vision and determination of the leaders of the two parties and the two countries, he added, the traditional friendship and comprehensive cooperation between Vietnam and China will continue to develop soundly in the future.

He noted that the two parties have established exchange and cooperation mechanisms among their departments, and exchanges at the municipal and provincial levels are also broadening the scope of their cooperation.

In addition, the CPV and the CPC have always enjoyed close coordination in international forums regarding political parties, he said.

"The ties between the two parties are a unique feature of the Vietnam-China relations due to similarities in the political systems of the two countries," Quan said.