Polyurethane is made by (among other steps) mixing paint thinner and phosgene gas. It’s a nasty dangerous process.
The only time plants are involved is when they mix in some fiber pulp at the end.
Plant based plastics exist, but they are not polyurethane.
I work in big factories and this is a stupid fucking idea.
Scenario 1: you have 6 trained maintenance guys on shift. One of them goes to check out the questionable valve and fixes it because they are trained to do so. The 5 other guys also work on stuff.
Scenario 2: one of the maintenace guys sits in the office because someone needs to coordinate with the robot dogs. They call the person who controls the dogs to go check out the valve. It is broken. A couple hours later they call a maintenace tech to check it out for real. Unfortunately the company can only afford 3 maintenance techs now because of the dogs, and one of the techs is on tech duty to communicate with the dog team. The other two are busy so the incident is recorded in the logs for an engineer to hire a contractor to fix at a total of three times the price, in six months’ time.
In the US you get charged with a bunch of bullshit as an intimidation tactic (or often for propaganda reasons). In court it gets haggled down to the actual charges. No penalty for prosecutors doing this.