Sept 1 (Reuters) - Piedmont Lithium Inc PLL.O said on Thursday it will build a lithium processing plant in Tennessee to supply the rapidly-growing electric vehicle (EV) industry. Last month's sweeping Inflation Reduction Act includes a $7,500 tax credit for EVs which contain certain elements mined or processed in the country. Piedmont expects the Etowah, Tennessee facility to begin production in 2025, and believes it will be the largest lithium hydroxide processing site in the United States, with a target of 30,000 metric ton per year (tpy).