China reiterated Monday that it will continue its support for Sudan's efforts to achieve peace, stability, development and national unity.

"China and Sudan enjoy deeply-rooted ties. China will, as always, support Sudan's efforts to achieve peace, stability, development and national unity," said Li Chengwen, China's special representative to the Sudan's national dialogue conference, which closed in the capital Khartoum on Monday.

Li also noted that China will join the Sudanese government and all Sudanese political parties to seek solutions to the country's crises through dialogue and negotiations.

Sudan's national dialogue conference on Monday approved a final document following deliberations that lasted about a year.

Representatives of the political parties, armed groups and civil society organizations signed the document before it was handed to the Sudanese President Omar al-Bashir, who chaired the concluding session.

The presidents of Egypt, Mauritania, Uganda and Chad also attended the session.

The final document, covering principles of rule, public freedoms, identity, peace, unity, economy and external relations, will provide the basis of the country's permanent constitution.

In January 2014, al-Bashir declared an initiative calling on the opposition parties and the armed groups to join a national dialogue to end the country's crises.

The sessions of the dialogue kicked off in October 2015 in a bid to resolve the country's political and social issues, with the participation of a number of Sudanese political parties, civil society organizations and some Darfur armed groups.

However, major political parties and armed movements refused to participate in the conference, including the Revolutionary Front Alliance, which brings together the Sudan People's Liberation Movement (SPLM)/northern sector and major Darfur armed movements.

Darfur armed groups and the SPLM/northern sector insist that a preparatory conference should be held, according to decisions of the African Union Peace and Security Council and the United Nations Security Council, to bring together all the Sudanese political forces to agree on procedures to initiate an equitable dialogue with the government, a demand that the Sudanese government rejects.