Tesla needs China, the world's largest auto market, in order to succeed. Customer demand and government support for so-called new energy vehicles there is skyrocketing.

CEO Elon Musk recently warned that without manufacturing in China, Tesla won't be able to produce 10,000 Model 3 electric sedans per week (as the company has aimed to do for years) and won't be able to offer the eagerly awaited base model at a price of $35,000.

"Bottom line is we need the Shanghai factory to achieve that," Musk said on the company's 2018 fourth-quarter earnings call.

However, Tesla — like other U.S. automakers — faces considerable competition in China.

According to Michael Dunne, founder of automotive advisory firm ZoZo Go, "China produced half of global electric vehicles last year. The U.S. produced about 20 percent. China is clearly way out in front in terms of size, production and scale."

Electric vehicle makers that are already up and running there include:

A bevy of electric vehicle start-ups are on the rise in China too, including Byton and WM Motor Tech.

Chinese automakers have benefited from some $60 billion worth of subsidies and incentives since 2012, designed to make new energy vehicles affordable for Chinese drivers, according to ZoZo Go.

But as Musk recently bemoaned, Tesla hasn't been able to cash in on those subsidies and tax incentives. As a result, a Model S that would cost around $80,000 in the U.S. today would cost around $140,000 in China after taxes, for example.

Tesla's vehicles will probably remain very costly in China until the company begins manufacturing at its planned factory there in Shanghai.

Even though Tesla broke ground on its Gigafactory 3 in Shanghai, the company has yet to publish an 8-K filing with the SEC showing that it has secured funding, or secured a material partnership, to build it out.