Bitumen Market Review: Covid-19 impact Since January, the spread of the coronavirus has sent global stock markets and oil market tumbling, Bitumen Market Review: Covid-19 impact Since January, the spread of the coronavirus has sent global stock markets and oil market tumbling,  Bitumen Market Review: Covid-19 impact Since January, the spread of the coronavirus has sent global stock markets and oil market tumbling,  Bitumen Market Review: Covid-19 impact Since January, the spread of the coronavirus has sent global stock markets and oil market tumbling,  Bitumen Market Review: Covid-19 impact Since January, the spread of the coronavirus has sent global stock markets and oil market tumbling,  Bitumen Market Review: Covid-19 impact Since January, the spread of the coronavirus has sent global stock markets and oil market tumbling,