PetroChina was the first publicly traded business widely reported to reach a $1 trillion valuation during its 2007 debut.
PetroChina’s shares surged on November 5, 2007, their first day on the Shanghai Stock Exchange. At the session’s high, the company’s implied market capitalization exceeded $1 trillion, although the price later fell sharply. The event made PetroChina the first listed company reported to cross that valuation intraday.
PetroChina is the listed arm of China National Petroleum Corporation and operates across exploration, production, refining, and distribution. Its debut was supported by strong investor enthusiasm for Chinese equities and energy companies at the time.
This fact is often omitted from simplified histories that call Apple the first trillion-dollar company. Apple was the first U.S. company to reach $1 trillion in 2018, while PetroChina’s earlier valuation was a brief intraday peak. The distinction between country, listing, and closing value explains the different claims.