BEIJING - Party leaders worldwide have congratulated China on the 18th CPC National Congress, which opened Thursday in Beijing.

Samoan Prime Minister Tuilaepa Lupesoliai Sailele Malielegaoi who is also the leader of the Human Rights Protection Party, in his congratulatory message expressed gratitude for the support China has provided to Samoa and for the close friendship between the two countries under the leadership of the CPC.

The president of the Pakistan Muslim League (N) -- Muhammad Nawaz Sharif -- said in a congratulatory message that the CPC has introduced far-reaching reforms that have ensured decades of consistent economic progress, scientific development and social harmony, resulting in unprecedented development at home as well as increasing influence and prestige on the world stage.

Sharif, meanwhile, expressed deep appreciation to General Secretary Hu Jintao and Premier Wen Jiabao for having taken personal interest in forging stronger and more meaningful ties with Pakistan.

The Pakistan Muslim League (PML) Secretary General Mushahid Hussain Sayed and PML President Chaudhry Shujat Hussain said in their congratulatory message that the CPC has been pivotal in providing leadership to the Chinese people in not just the establishment of New China but also in building a prosperous China whose peaceful rise is a source of strength and stability for Pakistan and Asia as a whole.

The message added that this remarkable achievement can be attributed to wise leadership for whom the interests of the people of China are paramount.

The two leaders also said that "we have no doubt that the 18th Congress of the CPC would be a turning point in the eventful history of the CPC as well as China as a whole and we look forward to the emergence of fruitful results of the 18th congress."

The chairman of the Unified Communist Party of Nepal (Maoist) -- Puspa Kamal Dahal Prachanda -- said in his message that "we feel pride to see our immediate neighbor to have achieved a remarkable economic progress accompanied by political stability under the leadership of the CPC."