No, the entirety of Sentosa Island is not owned by Genting; rather, it is owned and managed by the Sentosa Development Corporation (SDC), a statutory board under Singapore's Ministry of Trade and Industry. SDC acts as the primary steward of the island, overseeing its overall development, infrastructure, and promotion as a global tourist destination. However, Genting Singapore (a subsidiary of the Genting Group) owns and operates Resorts World Sentosa (RWS), which is one of the island's most significant private developments. RWS is an integrated resort that occupies a large portion of the island and includes major attractions such as Universal Studios Singapore, S.E.A. Aquarium, and a casino. While Genting is the most prominent private leaseholder on the island, the sovereign ownership and administrative control remain with the Singapore government through SDC, which also manages other key assets like the Sentosa Golf Club and the Singapore Cable Car network.