Japan is experiencing nationwide shortages of plastic bags, food-service trays, and disposable gloves due to disrupted naphtha supplies [1, 2].

The crisis threatens the stability of the country's retail and food sectors, as these essential plastics are derived from crude oil shipments now blocked by war-related shocks in the Middle East [1, 2, 3].

Naphtha serves as the primary feedstock for plastic production. Because Japan relies heavily on imports, the conflict involving Iran has cut off the crude-oil shipments necessary for refineries to produce the chemical [1, 2]. This supply chain failure has led to immediate shortages and rising prices for consumer goods [3].

Retailers are feeling the impact most acutely. Shortages are hitting bakeries, supermarkets, and convenience-store chains hard, and everyday items are becoming more expensive for people, a report from MSN Money said [3].

Japan’s annual plastic consumption exceeds eight million tonnes [1]. The food sector is particularly vulnerable, as it accounts for nearly one-third of the nation's total plastic use [1].

Government officials are now intervening to prevent panic buying. "We urge the public not to hoard trash bags more than necessary," Environment Minister Hirotaka Ishihara said [3].

The instability is seen as a systemic risk to the industrial base. "The stability of plastic as a basic industrial material has been shaken," Chen Ping-Kuo, a professor of industrial engineering and management at Ritsumeikan Asia Pacific University, said [2].

“"The stability of plastic as a basic industrial material has been shaken."”

This shortage highlights Japan's extreme vulnerability to geopolitical instability in the Middle East. Because the nation lacks domestic crude oil production, a disruption in naphtha feedstock creates a rapid domino effect that moves from refineries to the shelves of convenience stores. The crisis may accelerate government efforts to find alternative materials or diversify energy imports to protect the food and retail supply chains.