World’s Biggest Electric-Car Battery Firm Stays Juiced

* CATL’s stock closes up 10% at 39.82 yuan a share on Tuesday, pushing up its valuation to $12.3 billion

* The company also announced an investment in Byton, one of China’s fastest growing electric-car startups

(Beijing) — Contemporary Amperex Technology Co. Ltd. (CATL) — the world’s largest manufacturer of electric-car batteries — saw its stock rise by the daily limit for a second day Tuesday, after its Monday listing was granted relatively speedy approval.