Tata Sons is in discussions with multiple startups as the conglomerate seeks technical know-how for its £4 billion ($5.1 billion) U.K. battery plant, where it aims to start mass production in 2026.

“If you look at the startups that are working in this space, they are at the forefront of technology,” Tata Motors Group chief financial officer P.B. Balaji said in an interview in Mumbai. “It’s a mélange of opportunities. We are speaking to a host of them.”

The collaborations for the battery plant, capable of supplying cells for at least 500,000 vehicles annually, could range from a joint venture and the sharing of knowledge to experimentation and licensing agreements, Balaji said.

Tata intends to have partners across “the whole pathway, from cell chemistry to manufacturing to industrialization,” he said. The conglomerate is speaking to several companies involved in different stages of the value chain — research and development, manufacturing innovation and refining — and plans to make an announcement soon after narrowing down the options.

Read more: Tata Group to Build Battery Gigafactory in the U.K.

Tata’s push adds to a host of carmakers like Mercedes-Benz Group AG, Stellantis NV and Nissan Motor Co., which have mostly chosen to work with long-standing battery makers in scaling up Europe’s battery supply. Volkswagen AG, which is developing 240 gigawatt hours of capacity in the region, in June said its plans faced challenges in finding enough skilled workers, equipment and critical minerals.

The factory is a win for the U.K.’s car industry which has been struggling in the aftermath of Brexit and the switch to electric vehicles. The U.K. produced 775,000 cars in 2022, the fewest since 1956, after the global semiconductor crunch and the closing of some factories hurt output.

Jaguar Land Rover Automotive Plc and Tata Motors are anchor customers for the plant that will provide 40 gigawatt hours worth of batteries with supplies starting from 2026. JLR plans to invest £15 billion over the next five years in developing electric cars and automated-driving features.

Tata plans to fund the project with a combination of equity and debt, Balaji said, adding it will also look at equipment financing. Tata will borrow whatever is required to keep the business plan running without over-leveraging the balance sheet, he said.

Tata’s main demand from the U.K. was securing competitive costs and the availability of green power on a continuous basis and negotiating that took time, Balaji said. The U.K. government adjusted taxes, including grid and connection charges, to offer competitively priced power.