Vietnam Expands South China Sea Outposts by Hundreds of Acres — Bloomberg Documents Hanoi's Accelerated Spratly Presence-Building as Beijing Widens Lead

Bloomberg reported on May 9, 2026 that Vietnam has expanded its South China Sea outposts by hundreds of acres over the past year, documenting Hanoi's accelerated land reclamation and presence-building in the Spratly Islands as China simultaneously accelerates construction at Antelope Reef in the Paracels. Vietnam is the second-largest SCS claimant by occupied features: it administers 21+ features in the Spratly Islands, including Spratly Island (Truong Sa Lon), Southwest Cay, Sin Cowe Island, East Reef, and features in the Union Banks area. Unlike China's 2013-2016 massive reclamation drive (which created ~4,600 acres across three major outposts), Vietnam's expansion has been more gradual and has attracted less international coverage, but Bloomberg's reporting indicates the pace accelerated in 2025-2026. The timing of Bloomberg's report — one day after the 48th ASEAN Summit closed without a binding Code of Conduct — highlights the broader dynamic of competing territorial consolidation among all SCS claimants operating in the absence of a binding rules-based framework. China's CSIS AMTI-documented construction at Antelope Reef in the Paracels (from October 2025, reaching ~1,490 acres by April 2026) far outpaces Vietnam's Spratly expansion in both scale and strategic impact, but the Bloomberg report underscores that multiple claimants are using the same ambiguous legal environment to bolster physical presence. Vietnam has not publicly commented on the Bloomberg report. No military confrontation was associated with Vietnam's construction activity; unlike China's operations in the Philippine EEZ, Vietnam's outpost expansion is in areas it has administered since the 1970s.