Iran Conflict Challenges Japan’s Plastic Dependency: Fuel Problems and Packaging Crisis

The geopolitical tensions affecting the Middle Eastern region and the supply disruptions caused by the Iranian conflict pose an unprecedented challenge to the Japanese economy, particularly the food and packaging industries. The blockade of the Strait of Hormuz and the uncertainty of maritime shipping routes have led to a drastic increase in the price and a shortage of petroleum derivatives, especially naphtha. As Japan is one of the world’s largest consumers of plastic, the resulting fuel and raw material supply problems have a direct and severe impact on the availability of packaging, transforming the country’s deeply rooted, plastic-centric service culture.

Japan’s Plastic Consumption in Numbers

Japan traditionally relies heavily on plastic packaging materials, which is a fundamental characteristic of everyday retail and the service sector. Recent statistics and environmental data highlight the scale of the problem: in 2023, Japan produced a total of 7.7 million metric tons of plastic waste, the vast majority of which came from packaging materials. With this volume, the island nation ranks second in the world behind the United States in terms of per capita plastic packaging waste.

The food and beverage (F&B) sector is one of the most significant pillars of plastic usage in Japan. This sector alone is responsible for nearly one-third of the country’s total annual plastic consumption of over 8 million tons. In this environment, the Middle East fuel crisis caused immediate and spectacular disruptions, as the raw material shortage hit precisely those industries that rely most on single-use plastics and multi-layered packaging solutions.

The Naphtha Shortage and Collapsing Production Indicators

The root of the crisis is the disruption in the supply of naphtha (light petroleum) extracted from crude oil. Naphtha is an essential raw material for both plastic manufacturing and the production of industrial printing inks. According to data from the Japan Petrochemical Industry Association (JPCA), the situation reached a critical level by March 2026: the production of polyethylene used for shopping and garbage bags fell by 62 percent compared to the same period in 2025.

Japanese industry is highly exposed to Middle Eastern imports; the island nation procures about 40 percent of the naphtha needed for printing inks from this conflict-torn region. Due to the closure of the Strait of Hormuz and wartime shipping difficulties, the price of naphtha has skyrocketed across Asia, triggering a domino effect. Japanese plastic bag and film manufacturing companies, such as Mitsubishi Chemical and Sanipak, indicated that due to the explosive increase in raw material costs, they are forced to implement price increases of about 30 percent in the near future.

Visual and Price Changes in the Food Industry

The most visible consequence of the packaging material price hike and the ink shortage is the change in the visual appearance of finished products. The Japanese snack giant Calbee announced that due to the unstable supply of raw materials needed for color printing inks, the packaging of 14 of their popular flagship products – including Potato Chips, Kappa Ebisen, and Frugra – would be temporarily replaced with black and white. Products with the monochrome design appeared on store shelves starting in late May 2026. The company emphasized that the move serves to maintain a stable and safe supply of products, while the nutritional quality remains unchanged.

Supply chain problems are also clearly reflected in consumer prices. The bakery manufacturer Pasco Shikishima raised the prices of certain bread and confectionery products starting July 1. Nissin York, a dairy and beverage manufacturer belonging to the Nissin Foods group, was forced to take a similar step. According to the company’s official statement, the costs of packaging materials have risen to such an extent that they could no longer be offset by internal efficiency improvements, making a revision of consumer prices inevitable.

Daily Life and Social Challenges

The plastic shortage has also upended the daily lives of Japanese society. Supermarkets, bakeries, and takeout restaurants are constantly struggling with a lack of plastic bags, trays, and sanitary gloves used for food safety. Many shops were forced to introduce discounts and incentives for customers who bring their own bags, plates, or boxes.

Municipal waste collection systems have also come under pressure. Japan has strict rules regarding the sorting of household waste, which requires the use of special garbage bags of specific colors. Prompted by news of the shortage, the public started panic buying, forcing retailers to limit purchases to a maximum of two packs per customer. In response, several municipalities temporarily authorized the use of non-standard bags for waste collection.

Prime Minister Sanae Takaichi’s government is trying to reassure the public. Chief Cabinet Secretary Kei Sato emphasized that the problem should be treated as a “supply bottleneck” rather than a permanent shortage. According to his briefing, naphtha imports from sources outside the Middle East tripled in May compared to pre-war levels. However, surveys show that the public continues to monitor the events with serious concern.

Outlook: Opportunity for a More Sustainable Future

Although the Iranian war has created severe economic challenges in supply chains, industry experts believe that the forced adaptation could accelerate the transition to more sustainable alternatives in Asia in the long run. The South Korean cosmetic packaging manufacturer Yonwoo, for example, reported that inquiries for paper-based tubes and pouches have tripled since the plastic shortage began. These alternatives require up to 80 percent less plastic. In Malaysia, dairy producer Farm Fresh has already switched to paper-based cartons due to plastic supply disruptions. If the supply problems of petroleum derivatives prove to be persistent, Japan may also be forced into a structural transformation of its traditional packaging habits.

Reference Links and Sources

• Original Reference: The Business Times – Japan’s love of plastic tested by supply constraints

• State-level Context and Environmental Guidelines: Ministry of the Environment, Government of Japan

• Industrial Production Data: Industry statistics of the Japan Petrochemical Industry Association (JPCA).