Contemporary Amperex Technology's (SHE:300750, HKG:3750) market value surpassed that of PetroChina (HKG:0857, SHA:601857) at one point as investors bet more on the battery maker due to the war in Iran, Bloomberg News reported Thursday.
The change comes as the world's largest battery maker announced plans to expand in the critical minerals sector.
CATL is now China's third-largest onshore stock, according to the report.
Toward the end of 2025, PetroChina's market value surged over CATL as oil prices surged on the start of the war, the report said.
The oil producer's value slipped amid talks of a truce between the U.S. and Iran, Bloomberg said.
(Market Chatter news is derived from conversations with market professionals globally. This information is believed to be from reliable sources but may include rumor and speculation. Accuracy is not guaranteed.)