Agri-Mark, the company that owns Cabot Creamery, could continue to lose millions of dollars in revenue following President Trump’s announcement Monday of tariffs on $200 billion worth of goods from China and Beijing’s response the next day that it would tax $60 billion worth of U.S. goods — including almost all dairy products. For dairy companies like [Agri-Mark], which merged with Cabot in the 1990s and has one third of the dairy farms in New England in its cooperative, news of more tariffs is not good for business. China is the third largest market for U.S. dairy products.Although Agri-Mark doesn’t ship much Cabot cheese to China, its plant in Middlebury has been exporting 30 million of the 40 million pounds of whey products it produces each year to the Chinese market.