Actually, the resins that make plastics, thanks to the Texas freeze.  This is effecting the composites industry, vinyl, chipboard mfg., and even the glue used for cardboard boxes.

https://www.compositesworld.com/news/resin-shortages-continue-to-affect-composites-supply-chain

https://wattsupwiththat.com/2021/03/18/texas-freeze-leads-to-plastics-crisis/

Thanks for the headzup.  I keep a fair supply of epoxy resins in my DIY inventory. I'll check prices before restocking.

related:

"It's unlikely that supply can outpace demand and restore balance this year, bank economists said."

Supply-Demand Gap and Inflation Requires Rethink of US Economy: BofA
https://www.businessinsider.com/inflation-economic-outlook-supply-demand-gap-rethink-us-economy-bofa-2021-5

"It's a side effect of the labor crunch, supply chain hiccups, and soaring demand.
But it's also the result of the Texas storms, which severely impacted the plastics industry. "

Plastic Cups, Straws, and Containers Shortage Hits Restaurants
https://www.businessinsider.com/plastic-cups-straws-containers-shortage-restaurants-impact-2021-11

Well, that's one shortage for which there could be a lot of long-term upside if it persists.