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DETROIT — President Joe Biden, a gearhead with his own vintage Corvette, is showcasing his administration’s efforts to promote electric vehicles during a visit Sept. 14 to the Detroit auto show.

MEXICO CITY — Mexico and the United States plan to take advantage of the Biden administration’s massive investment in semiconductor production to push the integration of their supply chains and cooperate on expanding the production of electric vehicles through Mexico’s nationalized lithium industry, officials from both countries said Sept. 12.

The Pennsylvania Turnpike is jumping into solar energy production to power its maintenance and office buildings with a long-term goal: using solar-generated power to electrify portions of the toll road so electric vehicles can charge as they travel.

The National Highway Traffic Safety Administration is operating without a Senate-confirmed leader again, leaving a void atop the agency tasked with preventing road injuries and deaths even as the number of fatalities moves sharply in the wrong direction.

President Joe Biden is poised to sign an executive order Sept. 12 to help expand U.S. biomanufacturing and reduce reliance on China.

Tesla Inc. is plotting a potential lithium refinery on the gulf coast of Texas, a move that would bolster the company’s battery production efforts and further expand its footprint in the state.

Chip delivery times shrank again in August, a sign the global shortage is easing further, but some types of semiconductors remain hard to find.

Nikola Corp. won a court order preventing founder Trevor Milton from using certain company communications in his defense against criminal charges that he lied about the company’s products to mislead investors and prop up the stock.

President Joe Biden’s nominee to lead the Federal Highway Administration is scheduled to address this month the U.S. Senate committee on transportation policy.