DeepSeek — Headquarters: Hangzhou, Zhejiang, China

NoteThe source explicitly states in multiple places: (1) In the infobox: 'Headquarters: Hangzhou, Zhejiang, China'; (2) In the opening paragraph: 'Based in Hangzhou, Zhejiang, DeepSeek is owned and funded by the Chinese hedge fund High-Flyer'; (3) In the 'Company operation' section: 'DeepSeek is headquartered in Hangzhou, Zhejiang, and is owned and funded by High-Flyer.' The additional context about High-Flyer being based in Hangzhou is also confirmed in the source, which states that Liang Wenfeng 'co-founded' High-Flyer and the company was established in Hangzhou. All elements of the claim are directly confirmed by the source text.