Chinese equities touched a one-year low on Monday as technology shares sold off after reports that Beijing may allow local companies to purchase Nvidia's new semiconductors and US senators proposed procurement restrictions on two Chinese optical producers. The CSI 300 fell as much as 2.4%, with Cambricon Technologies, GigaDevice Semiconductor, Zhongji Innolight and Eoptolink Technology each down at least 5%. The developments renewed concern that access to Nvidia's advanced H200 chips could weaken demand for less capable domestic alternatives, while proposed US restrictions highlighted the continued separation between technology policy and broader diplomatic efforts. The latest weakness adds to a volatile period for Chinese technology stocks, following losses in domestic memory-chip makers, optical-module companies and artificial-intelligence shares. Investors are watching for a formal decision on Nvidia chip access, further procurement guidance from China's Ministry of Industry and Information Technology, and implementation of the US measures. A recent US-China summit extended the trade ceasefire until January and included expected tariff relief on about $30 billion of products, but investors viewed the outcome as offering limited support for technology shares.