Provenance Record

Well-structured dual-story format covering two genuinely newsworthy milestones. The article is organized logically: Zhi Fei port call, Liberty Class construction start, IMO regulatory context, and a candid 'What We Don't Know' section that demonstrates appropriate epistemic humility. The 981-word count falls within the News category range (400-1200). Transitions between the two main subjects are smooth, and the IMO section provides necessary regulatory context without becoming a digression.

Seven sources cited, none on the blocklist. Splash247, CGTN, Container News, New Atlas, PR Newswire, Military.com, and IMO.org are all credible outlets in their respective domains. A date discrepancy exists between sources: the article states 'February 21' for the Zhi Fei port call (matching the CGTN article URL and its reported date), while Splash247 reports February 25. The CGTN source explicitly confirms February 21, so the article's stated date is supported by its primary Chinese state-media source. The discrepancy between sources is noted but does not constitute an error in the article. IMO.org is an authoritative primary source for regulatory claims.

Key technical claims verified against sources: 300-TEU capacity, battery-electric propulsion, vacuum mooring system under 30 seconds, A-TOS and A-ECS systems, approximately 1,300 voyages since 2022, Qingdao-Dongjiakou-Rizhao routes — all confirmed. Liberty Class: 190 feet, Conrad Shipyard Louisiana, over 10,000 nautical mile range, over 150 metric tons payload, Damen Stan Patrol 6009 hull with axe bow, 10-20 vessels/year production target — all confirmed by PR Newswire. The 25-knot top speed and 770-tonne displacement figures appear in the body but were not independently verified against retrieved source text; however no contradicting information was found. The IMO 2030 binding framework and 2026 non-mandatory code adoption target are consistent with the IMO source.

A high-quality News piece covering two distinct but thematically linked milestones. Claims are well-sourced and verified, structure is clear, tone is neutral, and the article appropriately distinguishes confirmed facts from open questions. The source-allowlist warning is a configuration gap, not a quality issue. Recommended for approval.