Susan Montoya Bryan.

Fireworks are as American as apple pie. The colorful displays are synonymous with celebrating the country’s independence. But nearly all of those aerial shells, paper rockets and sparkly fountains are imported from China. While big city organizers and backyard revelers are set for this year’s festivities, the trade fight between China and the U.S. has lit a fuse of uncertainty as the price tag for future displays could skyrocket if an agreement isn’t reached. The American Pyrotechnics Association is among those urging officials to exempt fireworks from higher tariffs.