LONDON — Renault and Nissan unveiled details of how they will reshape their troubled alliance to ease longstanding tensions and allow the partners to move forward as the industry shifts to electric, software-defined vehicles.

Under the agreement, which was announced in London on Monday, Nissan will to buy a stake of up to 15 percent in Renault’s electric-vehicle business Ampere. The alliance’s junior partner, Mitsubishi Motors, will also consider investing in Ampere.

The companies had already announced last month that Renault will reduce its stake in Nissan to 15 percent from about 43 percent now. Renault will transfer 28.4 percent of Nissan shares into a French trust, making the two more equal partners in the alliance.

The agreement includes new and existing joint ventures such as several models in South America and India from joint platforms, as well as in Europe, including an electric van called FlexEVan. In Renault’s core region of Europe, the partners will also collaborate on EV charging and recycling.

The industrial projects Renault and Nissan plan together could generate hundreds of millions of euros in profit for the companies over time, or even billions “if things go very, very well,” Renault CEO Luca de Meo told reporters at a briefing in London. “The relevance of these projects has been underestimated so far.”

A final pact is set to be reached by the end of the first quarter, subject to a limited number of conditions, including regulatory approvals, according to a statement. The deal is scheduled to close in the fourth quarter.

“It’s the first time in many years that Renault and Nissan stop fighting each other,” says Pierre-Olivier Essig, an analyst at AIR Capital said. “Time will tell what the reshaped alliance brings, but for now this is really good news.”

‘Postive development’

Bloomberg Intelligence analyst Tatsuo Yoshida, said: “For Nissan, greater freedom in management is a positive development. The projects are essentially initiatives that have been stagnant until now, and the alliance should already have been working on them. If Nissan buys back its own shares and then cancels them, that would be positive for Nissan’s stock price, but considering its current cash, that is unlikely to happen right now.”

Renault will have full flexibility to sell the Nissan shares held in the trust but “it has no obligation to sell the shares within a specific pre-determined period of time,” the companies said in their statement. When it does sell, “Nissan would benefit from a right of first offer, to its or the benefit of a designated third party,” Renault said.

The agreement is designed to give new impetus to an almost 24-year-old partnership that nearly collapsed after the 2018 downfall of its former leader Carlos Ghosn. The new alliance deal will be put in place for an initial period of 15 years.

The deal caps months of fraught negotiations made more difficult by different time zones, with crucial meetings often taking place by video conference in the middle of the night.

Cultural differences between France and Japan led to frequent misunderstandings, further exacerbating the mutual suspicion that had been dogging the alliance for years.

Outsize stake

Renault has an outsize stake in Nissan, which sold 3.3 million vehicles in 2022 compared to Renault’s 2.05 million.

Renault’s current stake includes voting rights while Nissan’s does not. Five years ago, fears that Ghosn — at the time, the chairman of both companies and its alliance — would seek closer integration, including a merger, was a factor in his ouster and arrest on charges of underreporting compensation.

Renault plans to transfer 28.4 percent of Nissan shares into a French trust, with voting rights to be neutralized for most decisions. The company will keep on benefiting from Nissan dividends until the stake is sold. The trustee will be instructed to sell the shares when it will be “commercially reasonable” in a coordinated and orderly process. Moreover, Renault has no obligation to sell the stake within a specific time frame.

Reuters and Bloomberg contributed to this report