China is committed to upholding fairness and stability amid global uncertainty, former Hong Kong leader Leung Chun-ying has said, adding that continued cooperation between Beijing and Southeast Asia will bring mutual benefits. Leung, vice-chairman of the National Committee of the Chinese People’s Political Consultative Conference, the country’s top political advisory body, noted on Tuesday that China opposed unilateralism and protectionism, defended the multilateral trading system, and remained...