Saudi Arabia's decision to join the China-led Shanghai Cooperation Organisation (SCO) as a dialogue partner may help boost Beijing's influence in the Middle East, but some analysts have warned the significance of the move should not be overstated.
The Saudi cabinet approved the decision on Tuesday in a move seen as being primarily motivated by economics, but diplomatic observers cautioned that it remained to be seen whether the SCO could help solve the Middle East's disputes.
Earlier this month China helped broker a deal between the Saudis and Iran - which is expected to become the SCO's ninth full member - to restore diplomatic relations.
Do you have questions about the biggest topics and trends from around the world? Get the answers with SCMP Knowledge, our new platform of curated content with explainers, FAQs, analyses and infographics brought to you by our award-winning team.
Dialogue partners are seen as being on the periphery of the SCO behind full members and observer states, but the Chinese government offered its congratulations to the Saudis on Thursday.
Foreign ministry spokeswoman Mao Ning said: "We are ready to strengthen cooperation with the Saudi side within the framework of the SCO to make greater contributions to maintaining regional security and stability and promoting common development."
"Saudi Arabia's decision to join the SCO will definitely help China expand its influence in the Middle East," Zhang Chuchu, an associate professor at Fudan University, said.
"China maintains strategic partnerships with the region's different stakeholders so that they have a more positive attitude towards international organisations and initiatives launched by the country."
She added that there were signs that both the Saudis and Iranians had converging interests, providing room for further cooperation, but Beijing needed to find a way to handle disputes between the two.
"How to balance and coordinate the relationship between the two and how to reduce the impact of Saudi-Iranian differences on the organisation's efficiency will be an important issue for the SCO in the future," she said.
Jonathan Fulton, a senior non-resident fellow at the Atlantic Council, said: "As a dialogue partner Saudi's membership in the SCO shouldn't be overstated. That could change if it signals an interest in playing a greater role in the SCO, but for now it's very much at an entry level.
"Meanwhile, the SCO's role in the global security landscape is quite marginal at this point. We might see specific members like Russia, China or India playing a larger role in MENA [Middle East and North Africa] security affairs, but I don't see the SCO itself taking on a bigger role as an institution."