The Hong Kong government officially banned shark fin and Bluefin tuna from their dining events.
Hong Kong officials were also instructed not to eat the products if they are served at non-government banquets in a move the government said will "set a good example" around the world.
The environmental group World Wildlife Fund, called the decision a "bold and encouraging step" toward the conservation of sharks and Bluefin tuna.
Conservationists welcomed Hong Kong's decision, though it came with a bit of caution, as the island nation is the capital of the world's shark fin trade. Though numbers are down from a decade ago, huge amounts of shark fin is processed in Hong Kong where it is dried, salted or preserved in brine and then re-exported to other Asian nations.
The International Union for Conservation of Nature (IUCN) states that of the 468 shark species, 74 are listed as vulnerable, endangered or critically endangered. The IUCN and conservation groups also regard shark finning as inhumane.