Tesla Inc broke ground on Monday for its Shanghai Gigafactory where it plans to begin making its Model 3 electric vehicles (EV) by year-end, a first step in localizing production in the world's largest auto market.

At a ceremony at the site of the plant on the outskirts of Shanghai, Chief Executive Elon Musk joined the city's mayor and other local government officials to formally begin construction of a factory that Tesla has said will cost around $2 billion.

“We think with the resources here we can build the Shanghai Gigafactory in record time and we're looking forward to hopefully having some initial production of the Model 3 towards the end of this year and achieving volume production next year,” Musk said at the event.

The so-called Gigafactory is China's first wholly foreign-owned car plant, a reflection of China's broader shift to open up its car market, even amid a trade war with the United States which has seen a rise in tariffs on cars imported from the US.