opened up 6.9 percent, while fell 2.51 percent and dropped 2.48 percent.

Leading Chinese electric vehicle (EV) companies listed in Hong Kong opened mixed today, with Nio (NYSE: NIO, HKG: 9866) opening higher and Xpeng Motors (NYSE: XPEV, HKG: 9868) and Li Auto (NASDAQ: LI, HKG: 2015) opening lower.

Nio opened up 6.9 percent, while Xpeng fell 2.51 percent and Li Auto dropped 2.48 percent.

Hong Kong's Hang Seng Index opened down 1.25 percent, while the Hang Seng Tech Index fell 2.84 percent.

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Overnight, Nio shares traded in the US rose 0.37 percent, Xpeng fell 9.3 percent and Li Auto dropped 3.65 percent.

Xpeng was reported yesterday that its entire lineup will begin to increase prices on March 21 and that the free 1,000 kWh annual charging credit for consumers will be canceled at the end of this month.

There was no recent news about Nio or Li Auto yesterday.

Also of note is that the US and China appear to be accelerating cooperation on auditing and regulation of US-listed Chinese companies.

Top officials from US and Chinese securities regulators held working-level talks to exchange views on possible paths to advance audit and regulatory cooperation, local media Cailian said yesterday, citing sources close to the Chinese regulator.

The two sides plan to further strengthen communication and reach cooperation arrangements as soon as possible within a framework that is consistent with their respective laws, according to the report, which did not disclose further details.

The development comes after Chinese Vice Premier Liu He chaired a meeting of the State Council Financial Stability and Development Committee on March 16 to express support for capital markets.