The project, with a total floor area of about 350,000 square meters, will be completed and operational within one year.

The project will focus on research and development of battery technology including low energy consumption, long-range power battery system architecture, and low-temperature environment to solve the problems of new energy vehicle users including mileage anxiety, Jiemian quoted Qu Tao, CATL's chairman assistant, as saying.

Neither the Lingang New Area management committee's press release nor Jiemian's report mentions Tesla, but based on previous information, it appears that the project is primarily aimed at supplying batteries to Tesla.

On August 18 of last year, CATL and the Shanghai government signed a strategic cooperation framework agreement to build a manufacturing base in Shanghai.

In a January 7 report, Shanghai Observer said that a CATL plant in Lingang had already begun supplying Tesla a few blocks away in November 2021.

According to the report, the plant was converted from an existing facility, saving CATL seven to eight months of time. Although not explicitly said in the report, the facility appears to be able to assemble only battery modules and does not have the capacity to produce cells.

In a report on January 24, a reporter from the Securities Times visited the plant on site, saying it was a battery module base just 3 kilometers from Giga Shanghai.

The Securities Times quoted auto industry analyst Zhang Xiang as saying that CATL's battery module base was sited in Lingang mainly to supply Tesla quickly and at a lower cost.

"Tesla Giga Shanghai's delivery volume last year was close to 500,000 units, which is very big. If the battery module base is not built in Lingang, the transportation cost of the batteries alone is very high, plus the battery transportation cycle is long," Zhang said.

CATL's new battery factory will be located next to Tesla's Giga Shanghai, which has just broken ground and the exact location is not yet visible, an employee of the battery maker said, according to the Securities Times report.