Chinese battery giant CATL has started the process to list in Hong Kong by lodging its filings with regulators in a deal that is expected to raise at least $5 billion, according to two sources with direct knowledge of the matter.

CATL is also listed on the Shenzhen stock exchange, boasting a market cap of $150.5 billion. The battery giant supplies big automakers like Tesla.

China’s Contemporary Amperex Technology (CATL), the world’s largest producer of batteries for electric vehicles and a supplier for Tesla, has applied for a listing in Hong Kong, setting sights on one of the city’s largest stock offerings in years.

CATL, as the Chinese company is known, submitted its application draft with the Hong Kong stock exchange on Tuesday, following the board’s approval in December. The IPO size and timeline were not disclosed. A US$5 billion deal, as reported by Reuters, would rank as the largest since Kuaishou Technology raised US$6.2 billion in January 2021.