港股開盤，恆指開跌0.47%，科指開跌0.2%。中芯國際(00981.HK)漲約3%，阿里巴巴(09988.HK)跌2%。

Hong Kong-listed mainland property shares fell: CIFI Holdings Group (00884.HK) down over 9%, Zhongliang Holdings (02772.HK) down over 8%, Greentown China (03900.HK) and Longfor Group (00960.HK) down over 5%, CHINA RES LAND (01109.HK) and SUNAC CHINA (01918.HK) down over 4%.

The first round of U.S.-Iran talks in Switzerland concluded on the 21st after an 80-minute session, Iran said. Pakistan and Qatar participated as mediators; the meeting was adjourned for a break and internal consultations. Iran said the nuclear programme was not discussed; discussions focused on implementing Article 13 of a memorandum of understanding and prioritized Lebanon-related issues.