Tennady Zyuganov, leader of the Communist Party of the Russian Federation, said he had closely followed the CPC congress and paid attention to the resolutions adopted at the gathering.

He voiced confidence the tasks set by the party congress were sure to be fulfilled.

Nikolai Levichev, leader of the Russian Justice Party, said, under Xi's leadership, the CPC would surely score new achievements on the way to building a prosperous and democratic country and enhance China's prestige in the international arena.

The Russian Justice Party attached great importance to its constructive ties with the CPC and was willing to continue to promote fruitful cooperation between the two parties, he said.

Vladimir Zhirinovsky, leader of the Liberal Democratic Party of Russia, said the experience Xi accumulated in his long-term work in the construction of both the CPC and the country made him top leader of the CPC.

"We are very glad to see the enormous contributions you have made in recent years to the development of Russia-China relations and wish you success as the CPC leader," he said.

Sigmar Gabriel, president of Germany's Social Democratic Party, said the CPC congress had assumed special significance in shaping China's future development as well as its important international role.

"We hope to maintain and deepen dialogue and exchanges with the CPC," he said.

Expressing his sincere congratulations on Xi's election to the CPC top office, Antonio Jose Seguro, Secretary-General of Portugal's Socialist Party, said his party hoped to continue to advance cooperation with the new CPC leadership.

He wished the CPC greater success.

Pascal Nyabenda, chairman of the Conseil National pour la Defense de la Democratie-Forces de Defense de la Democratie (CNDD-FDD) of Burundi, said the announcement of Xi's appointment was greeted with great joy by all members of his party.

The relations between the two parties would be further enhanced and benefit both parties and countries, he said.

Alan Garcia, ex-president of Peru and president of the Peruvian Aprista Party, extended his warm congratulations on the successful election of the new general secretary, saying Xi would make greater achievements in constructing socialism with Chinese characteristics.

President of Costa Rica's National Liberation Party Bernal Jimenez hoped Xi would make greater achievements in his new role. Xi's performance in such positions of responsibility would be conducive to social and economic development of this great nation, he said.