President Xi Jinping stressed on Thursday the necessity for the Shanghai Cooperation Organization to bolster unity and cooperation, saying that the grouping must safeguard its security baseline, defend the right to development and build up its unity.

In a speech delivered at the 24th Meeting of the Council of Heads of State of the SCO in Astana, Kazakhstan, the Chinese president said it is critically important for the world that the grouping always stands on the right side of history and upholds justice and fairness.

The SCO formally approved the accession of Belarus to the grouping during Thursday's summit, and decided that China will hold the rotating presidency of the 10-member organization for 2024-25. The other members of the grouping are India, Iran, Kazakhstan, Kyrgyzstan, Pakistan, Russia, Tajikistan and Uzbekistan.

Xi noted that the SCO, which was founded 23 years ago, has seen its family, including observer states and dialogue partners, expand to 26 countries, spanning three continents.

With more partners, the foundation of cooperation is more solid, he said.

The organization must ensure the bottom line of security "in the face of real threats of the Cold War mentality", he said, highlighting the need for member states to practice the vision of common, comprehensive, cooperative and sustainable security.

The SCO must address complex and intertwined security challenges through dialogue and coordination, respond to the profoundly changing international landscape with a win-win approach, and endeavor to build a world of lasting peace and universal security, he stressed.

Faced with the real risks of the "small yard, high fences" approach, Xi called on member states to safeguard their right to development, saying that joint efforts must be made to advance sci-tech innovation, ensure stable and unimpeded industrial and supply chains, and stimulate regional economic vitality to achieve common development goals.

The Chinese president also appealed for enhanced unity and strength inside the grouping in facing the real challenges of interference and division.

SCO members should jointly resist external interference, firmly support each other, accommodate each other's concerns, and peacefully resolve internal differences, he said.