Investor confidence improved after comments from Donald Trump, who indicated that US military operations in Iran could end within two to three weeks. At the same time, Masoud Pezeshkian signaled openness to ending hostilities if certain conditions are met.

Market sentiment was also supported by corporate activity, with 43 companies listed in Shanghai and Shenzhen announcing share buybacks totaling 25.6 billion yuan'the highest level in nearly a year'helping offset pressure from recent geopolitical tensions.

On the economic front, a private survey showed China's manufacturing PMI eased to 50.8 in March from 52.1 in February, indicating slower but still expanding factory activity.

Technology stocks led the gains, with Zhongji Innolight rising 5.7% and Eoptolink Technology up 4%. In contrast, energy stocks lagged, with PetroChina down 1% and CNOOC falling 3.4%.