This represents a 55 percent increase over the 9,200 units sold in the same month last year and a 39 percent increase over the 10,251 units sold in February.

Jianghuai Automobile Group Co (JAC), 's vehicle manufacturing partner, sold 14,264 pure electric passenger vehicles in March, the company announced today.

That's up 55 percent from 9,200 units a year ago and up 39 percent from 10,251 in February.

JAC did not specify, though as is industry practice, its electric vehicle (EV) sales figures should include NIO (NYSE: NIO, HKG: 9866) vehicles.

NIO delivered 9,985 vehicles in March, up 37.6 percent from a year earlier and up 63 percent from February, data the company released earlier this month showed.

That includes 9,822 SUVs, as well as 163 ET7 sedans. NIO started its first ET7 delivery on March 28.

That means JAC's own brand of EVs sold about 4,279 units in March, slightly higher than the 4,120 units sold in February.

JAC sold 42,711 units of all models in March, down about 22 percent from 54,503 units in the same month last year.

JAC exported 7,491 vehicles in March, up 93 percent from 3,891 units in the same month last year.

CnEVPost reported earlier today that NIO increased its stake in its joint venture with JAC, Jianglai Advanced Manufacturing Technology (Anhui) Co, from 49 percent to 50 percent.

Jianglai was officially established on March 31 last year with a registered capital of RMB 500 million, owned 49 percent by NIO and 51 percent by JAC.

This latest move means that NIO's stake in Jianglai, which is qualified to produce cars, is the same as JAC's, perhaps implying that the company has a greater say in the plants they jointly built.