Seoul built walls from mushrooms and farm waste that were grown, not constructed

SignalsMonitor is following this as a general story. Times of India World is the outlet attached so far. The reports are tied to Seoul. The first report grouped here was at 26 Sept 2026, 18:30 UTC. The headline in use is “Seoul built walls from mushrooms and farm waste that were grown, not constructed”. This note is SignalsMonitor's own briefing, not the publisher's article.