Chinese battery maker Contemporary Amperex Technology Co Ltd (<a href="https://www.szse.cn/English/application/search/index.html?keyword=300750&r=1747739125118" target="_blank">SHE:300750</a>, <a href="https://www.hkex.com.hk/Market-Data/Securities-Prices/Equities/Equities-Quote?sym=3750&sc_lang=en" target="_blank">HKG:3750</a>), or CATL, began trading in Hong Kong today after raising over HKD 35.3 billion (USD 4.5bn/EUR 4bn) in net proceeds from its secondary listing in the financial centre.