Shark's fin soup is a soup or stewed dish served in parts of China, Taiwan, and Southeast Asia. The shark fins provide texture, while the taste comes from the other ingredients. From Wikipedia
The banquet, marking the first state visit to China by Pakistan's Prime Minister, featured delicacies such as 'Consommé of Swallow Nest and White Agaric,' 'Shark’s Fin in Brown Sauce,' and 'Roast Peking Duck.'