The evidence provided contains general information about Po Toi Island (Wikipedia) and general web search results, but none of the gathered evidence directly corroborates the specific claim that the 'sole eatery on Hong Kong’s southernmost island may shut after 50 years in business.' The web search result mentioning the claim itself is the only direct reference, making it a single source confirmation of the premise.

The web search results contain information about Ming Kee Seafood Restaurant on Po Toi Island, but none of the gathered evidence explicitly states that the owner believes the business may close due to dwindling customers or that he is hoping for a takeover. This specific narrative detail appears limited to the context of the original article.

The evidence provided does not contain specific details confirming that the owner's surname is Leung, nor does it confirm the specific timeline (closing at the end of the following month) or the reason (lack of a partner) mentioned in the claim. This specific sequence of details is not corroborated by the evidence.

One web search result directly supports the claim that 'Leung, in his seventies, said he was in talks with some customers who had expressed an interest in taking over the restaurant that specialised in seafood, such as deep-fried salt and pepper squid...'. No other independent sources corroborate the details regarding Leung's age, the talks, or the specific type of seafood.

While the evidence confirms that Po Toi Island is the southernmost island of Hong Kong (Wikipedia), and that the restaurant is located there (web search results), the specific historical detail that the restaurant 'was once popular with people sailing boats that anchored in Tai Wan bay' is not independently corroborated by multiple sources. The web search results mention the restaurant's location near Tai Wan, but not this specific historical popularity context.