Plastic garbage bag rush reflects Korea’s exposure to war-driven energy shocks

A run on garbage bags is an odd way to measure geopolitical risk. In South Korea, however, this most mundane of household staples has become a grim barometer of national anxiety.

As shoppers stand in line at daybreak to secure standard plastic bags, the scene reveals a society acutely aware of the fragility embedded in its globalized supply chains, where even basic necessities depend on distant inputs.

This anxiety is shaped in part by how waste is managed. Under South Korea’s volume-based disposal system, households must use officially designated bags sold through authorized channels. Finding alternatives during a perceived shortage is exceptionally difficult.

The trigger lies far from any supermarket. Since Feb. 28, the conflict pitting the US and Israel against Iran has intensified, with Houthi forces widening the theater. What began as a regional flare-up now threatens the primary arteries of global commerce and energy transit.

For the resource-dependent Korean economy, these developments are amplifying concern. The government’s effort to calm nerves is necessary, but the panic itself serves as a mirror of structural exposure and accumulated vulnerability.

In the past week, daily sales of standard garbage bags in Seoul have surged to about 2.7 million units, nearly five times the recent average, with items selling out at major retailers and smaller neighborhood stores alike.

The panic is not driven by an increase in trash, but by the prospect of naphtha scarcity. This feedstock, essential for producing polyethylene, has shifted from an obscure industrial input to a visible household concern.

Residual memories of the early pandemic, when face masks disappeared almost overnight, still linger. Stockpiling has become a crude form of insurance against uncertainty. Scarcity, real or perceived, feeds on itself and spreads quickly.

The geopolitical backdrop reinforces these fears. Two vital maritime conduits are now at risk. The Strait of Hormuz, a critical artery for oil, faces disruption. Simultaneously, the Bab el-Mandeb Strait in the Red Sea is under threat. This passage is a commercial lifeline for Korean exports to Europe, particularly vehicles, batteries and semiconductors.

Diverting cargo around the Cape of Good Hope adds about 9,000 kilometers, extending transit by 10 to 15 days and raising freight costs across already strained supply chains.

Contradictory signals from Washington further cloud the outlook. Markets are struggling to reconcile talk of a potential settlement with the threat of strikes on Iranian oil infrastructure and export facilities.

The won’s slide against the dollar, down 4.7 percent this month, has outpaced major peers. Investors are pricing in the risks of an industrial base heavily exposed to fossil fuel inputs, from petrochemicals to steel and shipbuilding.

Seoul has responded with reassurance and contingency. Minister of Climate, Energy and Resources Kim Sung-hwan has insisted that supplies are ample, noting that many local governments hold months of inventory and that recycled materials can sustain production.

In a worst-case scenario, authorities would permit the use of ordinary plastic bags for waste disposal. Price increases are ruled out by regulation.

Further measures include a 25 trillion won ($16.3 billion) supplementary budget, tighter export curbs on naphtha and the potential extension of vehicle rationing if oil prices climb further.

Political coordination has focused on curbing hoarding and cushioning households. Yet reliance on short-term subsidies could mask the larger task ahead. President Lee Jae Myung and policymakers must instead seek to alter the underlying metabolism of the economy and reconfigure the country’s energy policy.

The sight of shoppers chasing garbage bags should not be dismissed as mere curiosity. The objective is not simply to keep bins emptied, but to build an economic system less dependent on the continued openness of distant straits.

If this episode leads only to fuller closets, little will have been learned.