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I thought about this topic years ago. At the moment, laboratory tests are underway to make concrete without sand. But I don't know if anything has come of the prototypes since then.

In any case, there is no stock that benefits from this. The cement companies have to buy the sand from somewhere, which leads to higher costs. If the price of cocoa is rising at the moment, you also benefit if you are a cocoa seller and not a cocoa buyer. Maybe there are also sand futures, you can have a look.
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@Soprano I believe that I have seen a report from Heidelberg Cement that addresses the exact problem. But I could be wrong
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@GoDividend Yes, you'd have to find out how they get their raw materials. I know they have quarries and stuff like that, but the sand we need comes from rivers or oceans. You're somehow always dependent on the governments to give it to you.