Rivian Automotive, Inc. (RIVN) shares are soaring 5.10% in pre-market trading on Thursday, as investors react positively to news of the company's inclusion in a major electric vehicle charging infrastructure expansion plan.

Ionna, a joint venture formed by several leading automakers, has announced plans to invest more than $250 million in charging infrastructure across California over the next three years. This significant investment aims to boost the accessibility and convenience of electric vehicle charging, potentially benefiting EV manufacturers like Rivian.

In a move that particularly excites Rivian shareholders, the company's vehicles are set to be integrated into Ionna's Plug & Charge system by the end of 2026. This integration, which also includes other major automakers such as Honda, Stellantis, Toyota, and Ford, is expected to streamline the charging process for Rivian owners and increase the appeal of the company's electric vehicles. The expansion of compatible charging networks is seen as a crucial factor in driving EV adoption and sales, which could significantly boost Rivian's market position in the coming years.