The government of Hong Kong announced it will stop serving shark fin and bluefin tuna at official functions, and will encourage government funded bodies to do the same, according to reports.
The announcement was praised by conservation groups.
The demand for fins and other shark products has caused the numbers of certain species to fall by 60-70 percent, according to the World Wildlife Fund.
Hong Kong is one of the biggest shark fin markets in the world.
The Pacific bluefin tuna population has declined by 96 percent since the 1950s.
The Hong Kong government said it was making the move because the items “have aroused international and local concern because they are either captured or harvested in ecologically unfriendly or unsustainable ways, or cause other conservation concerns”.
Protests by environmental groups have hurt the sales of shark fin, a reality admitted by the traders themselves.
“We hope the citizens of Hong Kong can follow suit and finally lay this abhorrent tradition to rest,” Mr Hofford added.
Last year, photos of tens of thousands of shark fins drying on a factory rooftop in Hong Kong, in an apparent attempt to hide them from public view, sparked outrage from conservationists.
The campaigns against shark fins had already resulted in some five-star hotels removing the item from their menus, as well as the Hong Kong-based airline Cathay Pacific. Image/BBC