BEIJING—Chinese e-commerce company JD.com plans to import $2 billion worth of U.S. beef and other food products, a person familiar with the matter said, in one of number of agreements tied to President Donald Trump’s China summit.

Due to be signed Wednesday, the deal calls for JD to spend about $1.2 billion over three years on beef from the Montana Stockgrowers Association and pork from U.S.-based and China-owned Smithfield Foods Inc., the person said. The rest of the money, he said, will go to purchase other U.S. agricultural...