China has issued trade restrictions on Taiwan after United States House Speaker Nancy Pelosi's visit to the island nation despite Beijing's threats that the trip undermines its sovereignty. The sanctions include the suspension of some fruits and fish imports from Taiwan and exports of natural sand to the island nation. China is known to be Taiwan's largest trading partner, with bilateral trade worth $273 billion just last year, and accounts for 33% of the island's total trade with the rest of the world. China's Sanctions on Taiwan Furthermore, experts have a growing concern about the impact that escalating tensions between…