(CNN) - Medicinal marijuana is a growing industry worldwide and now Australia wants in.
The country announced Thursday it is legalizing its overseas exports and that it wants to become "the world's number one supplier."
Australia legalized medicinal marijuana at the federal level in 2016, but rules differ state to state. Recreational usage is still illegal.
Experts predict the market for marijuana could quadruple to $1 billion by 2020.
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