One research organisation has estimated that the global titanium dioxide market will reach an eye-watering US$31.19bn by 2022 owing to increasing use as a speciality coating in cars and photovoltaic systems, which convert solar energy.
It has also been found, when used in paints, to absorb nitrogen oxide, which causes smog, when it is exposed to sunlight.
One high profile vehicle maker which uses a titanium underbody shield is US electric car maker Tesla (NASDAQ:TESLA).
With 8.3 million tonnes of contained rutile, which is a key source of titanium, the firm controls the largest natural rutile deposit in the world, noted City firm Numis recently, as it started covering the shares with a 'buy' rating.
It produced 126,000 tonnes of of rutile in 2015 - around 15% of world supply.
"SRL is one of the only ways to gain pure rutile exposure," noted analyst Phil Swinfen, who places a 35p target price on the shares.
He says it has an unrivalled opportunity to benefit from an uptick in heavy mineral prices, ahead of other producers.
The current price of Sierra Rutile is 16.75p.