Nepal was officially made a dialogue partner after a memorandum was signed by SCO secretary-general Rashid Olimov and visiting Nepalese Foreign Secretary Shanker Das Bairagi. Nepalese Prime Minister K P Sharma Oli attended the signing ceremony.
The SCO was established in 2001 to promote cooperation on security-related issues and strengthen mutual trust, friendliness and neighborliness among the member states, Nepalese Deputy Prime Minister and Minister of Foreign Affairs Kamal Thapa said at the ceremony.
Nepal would "adhere to the principles, values and objectives" of the vibrant regional organisation, and participate actively in its future activities and progress, Thapa was quoted as saying by the official Xinhua news agency.
As Nepal joins the SCO, it will create new opportunities for the SCO's mutually beneficial cooperation and benefit people living in the extensive region that the SCO covers, Olimov added.
Last Monday, Azerbaijan officially became a SCO dialogue partner upon the signing of a similar memorandum.
The SCO consists of China, Russia, Kazakhstan, Kyrgyzstan, Tajikistan and Uzbekistan. India, Afghanistan, Iran, Mongolia and Pakistan are observer states.