Panasonic Energy Co. Ltd. started vertical construction this week in De Soto on its $4 billion electric-vehicle battery plant, moving on from about six months of preliminary site work.
Workers erected the facility's first steel beam on Wednesday, according to a release. They finished moving 4.5 million cubic yards of earth, a process that started in November.
Two Panasonic officials came to the site for the occasion. Panasonic Allan Swan, president of Panasonic Energy of North America and Carl…
