Tronox Limited is an American worldwide chemical company involved in the titanium products industry with approximately 6,500 employees.

Following its acquisition of the mineral sands business formerly belonging to South Africa's Exxaro Resources, Tronox is the largest fully integrated seller and marketer of titanium dioxide (TiO2) pigment, which provides brightness to applications such as coatings, plastics and paper.

Formerly a part of the Kerr-McGee Chemical Corporation and based in Oklahoma City since it was spun off from its parent in 2005, the company announced in June 2012 that it was moving its headquarters to Stamford, Connecticut.

According to one report, "Kerr-McGee, rather than pay for the environmental mess it created, decided to shift the liabilities between 2002 and 2006 into Tronox.

In response, shareholders sued Anadarko Petroleum (successor to Kerr-McGee) for keeping the scope of the environmental disaster a secret.

In addition the US federal government sued Anadarko to pay for the cleanup, and in April 2014 settled on the largest environmental contamination settlement in American history, over $5 billion.

[9][10][11][12] The environmental pollution included polluting Lake Mead in Nevada with rocket fuel, leaving behind radioactive waste piles throughout the territory of the Navajo Nation and dumping carcinogenic creosote in communities throughout the East, Midwest and South at its wood-treating facilities.

"[16] In April 2014, the federal government reached a $5 billion settlement with Anadarko (successor to Kerr-McGee) in the largest environmental contamination case in American history.

"[4] On 10 April 2019, Tronox acquired the Saudi Arabian titanium dioxide pigment manufacturer Cristal Global.