{"artifact":{"id":"art-reuters-cn-immersion-duv-20260728","dedupe_key":"772a738b30db9d85213edd9232f48fb3ae5f7fbbf35811270b3246a497068cf1","canonical_url":"https://www.reuters.com/world/china/china-starts-production-home-grown-immersion-duv-chipmaking-tools-source-2026-07-28/","evidence_locator":"","artifact_type":"news_report","title":"China starts production of home-grown immersion DUV chipmaking tools, source says","summary":"In July 2026, Reuters reported that Shanghai Aishengna had reportedly begun producing domestic immersion deep-ultraviolet equipment, while testing and qualification remained outstanding. The report does not demonstrate comparable production performance with ASML or reliable high-volume wafer manufacturing.","creator_entities":["Reuters"],"released_at":"2026-07-28T00:00:00.000Z","content_hash":null,"metadata":{"evidence_locator":"Article body, reporter attribution, and source-based caveats","epistemic_scope":"Confirms the dated publication and documented reporting, not successful commercial wafer manufacture."},"created_at":"2026-10-11T12:56:38.929Z","updated_at":"2026-10-11T12:56:38.929Z"},"sources":[{"id":"src-reuters-cn-immersion-duv-20260728","dedupe_key":"d5c953c71455518ea003f9996b2c7b2cced3b5aef40d4b8d00b71f3dbf08162a","name":"China starts production of home-grown immersion DUV chipmaking tools, source says","publisher":"Reuters","url":"https://www.reuters.com/world/china/china-starts-production-home-grown-immersion-duv-chipmaking-tools-source-2026-07-28/","evidence_locator":"","source_type":"investigative_reporting","primary_or_secondary":"secondary","retrieved_at":"2026-10-11T12:14:00.000Z","published_at":"2026-07-28T00:00:00.000Z","author":null,"metadata":{"evidence_locator":"Reuters report and its sourcing caveats","uncertainty":"Claims are reported by Reuters based on sources, not independently inspected hardware."},"created_at":"2026-10-11T12:56:38.929Z","updated_at":"2026-10-11T12:56:38.929Z"}]}