The Kingdom has been studying setting up the trading platform for the past three months and it does not expect a decision to be made before the next six.
By pressure-cooking birch leaves, researchers produced nanosized carbon dots that can be used in organic LEDs for super-thin TV and mobile phone screens.
“This is a source of income for more than 40,000 households, and we don’t have a response as to what is going to happen to us,” union leader Michael Camacho told reporters.
The ICMM is working with The Copper Mark, Mining Association of Canada and the World Gold Council towards consolidating their individual voluntary responsible mining standards.