Lego has opened a $1 billion factory in Vietnam that it says will make toys without adding planet-warming gas to the atmosphere by relying entirely on clean energy.

Toy prices could spike exponentially after President Donald Trump levied massive tariffs against China and Vietnam. The two nations are biggest manufacturers of toys imported into the United States.

Toy prices could spike exponentially after President Donald Trump levied massive tariffs against China and Vietnam. The two nations are biggest manufacturers of toys imported into the United States.

BINH DUONG, Vietnam — Lego opened a $1 billion factory in Vietnam that it says will make toys without adding planet-warming gas to the atmosphere by relying entirely on clean energy.