Iran Conflict Threatens Global Auto Supply Chains

Shipping Route Disruptions

A prolonged closure of the Strait of Hormuz would have impacts far beyond oil prices. A substantial portion of container shipping between Asia and Europe transits through the strait and the connected Persian Gulf region. Automotive manufacturers in Asia, particularly Japan and South Korea, who ship components and finished vehicles through these waters would face severe disruption.

The alternative shipping routes around the southern tip of Africa add significant time and cost to voyages, as the industry learned during disruptions to the Suez Canal and the Red Sea in recent years. These longer routes increase shipping costs, extend delivery times, and require higher inventory levels to buffer against longer lead times, all of which ultimately translate into higher vehicle prices for consumers.

European manufacturers would face a double impact: higher energy costs from reduced oil supply and disrupted component shipments from Asian suppliers. The European automotive industry's just-in-time manufacturing model, which minimizes inventory to reduce costs, is particularly vulnerable to shipping disruptions that can halt production lines within days of a supply interruption.

Semiconductor Supply Risk

The conflict also raises concerns about semiconductor supply chains. While chips are not typically shipped through the Strait of Hormuz, the broader destabilization of Middle Eastern shipping routes and the potential for retaliatory cyber operations targeting critical infrastructure could affect the complex global semiconductor supply chain that the automotive industry depends upon.

The memory of the 2021-2022 semiconductor shortage, which cost the global auto industry an estimated $210 billion in lost revenue, remains fresh. Automakers have since built larger chip inventories and diversified their supplier relationships, but these buffers could be quickly exhausted in a prolonged disruption scenario.

Industry Response

Major automakers are reportedly reviewing their supply chain contingency plans and assessing exposure to the affected shipping routes. Some manufacturers are exploring options to accelerate shipments from Asian suppliers via alternative routes, while others are evaluating whether to increase inventory levels of critical components as a precautionary measure.

Industry trade groups have called on governments to prioritize the protection of commercial shipping lanes and to provide clear communication about the likely duration and scope of military operations so that manufacturers can plan accordingly.

For consumers, the potential effects range from higher vehicle prices to extended delivery times for new orders. The used vehicle market, which typically strengthens when new vehicle supply is constrained, could see renewed price pressure if the conflict leads to sustained production disruptions.

Historical Context

The automotive industry's vulnerability to geopolitical shocks in the Middle East has been a recurring concern, but the current situation is distinguished by its intersection with multiple other supply chain stressors. Unlike previous periods of Middle Eastern tension, the industry today is managing an unprecedented technological transition, elevated raw material costs, and consumer affordability challenges simultaneously, leaving less margin for absorbing additional shocks.

This article is based on reporting by Automotive News. Read the original article.