How Hormuz Disruptions Affect China’s Energy Security and Industry

Hormuz disruptions are testing China’s energy security by exposing vulnerabilities in shipping routes rather than supply sources. While the country remains structurally resilient, rising oil prices are increasing costs across manufacturing, logistics, and industrial value chains.

Since late February 2026, interruptions to Gulf shipping and higher benchmark crude prices have tested the assumptions behind China’s oil-security planning: that major supply disruptions are typically short-lived, that diversified import sources and large inventories can bridge shocks, and that electrification steadily reduces marginal oil exposure.

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China remains structurally less oil-dependent than its crude-import headline numbers imply. Official data show coal still provides 51.4 percent of total energy consumption (2025) and “clean energy” (natural gas plus hydropower, nuclear, wind, solar) 30.4 percent, leaving oil as the residual around 18.2 percent. Yet oil is still critical for petrochemicals, aviation, shipping and heavy transport, so price spikes and refinery feedstock disruptions transmit quickly into margins and logistics costs, even if national energy security is not immediately threatened.

China’s immediate policy response has focused on limiting the domestic transmission of global oil price volatility while maintaining stable supply conditions. Authorities have used the National Development and Reform Commission’s (NRDC’s) pricing mechanism to moderate the pass-through of higher international crude prices to domestic fuel markets. At the same time, regulators have encouraged independent refiners to sustain processing rates and have adjusted crude import quotas to ensure adequate supply.

These measures are supported by China’s substantial oil stockpiles, which provide a buffer against short-term supply disruptions. However, policymakers remain attentive to potential second-round effects. Rising energy prices could gradually feed into higher transportation costs, increased freight and insurance expenses, and tighter margins for manufacturing firms.

Recent economic indicators highlight this emerging pressure. Official data show that China’s manufacturing Purchasing Managers’ Index (PMI) rebounded to 50.4 in March, signalling renewed expansion in factory activity. Yet sub-indices tracking input costs have moved higher, suggesting that manufacturers are beginning to face stronger cost pressures. If sustained, these dynamics could translate into a gradual squeeze on industrial profitability and export competitiveness.

Exposure and buffers

Import dependence is high, but energy self-sufficiency is higher than often assumed

China’s oil import dependence is often cited as a major vulnerability in its energy system. However, this view can be misleading without considering the broader structure of China’s energy mix.

While China imports a large share of the crude oil it consumes, oil accounts for only a portion of the country’s overall energy supply. According to the 2025 Statistical Communiqué, China’s total energy consumption reached 6.17 billion tonnes of standard coal equivalent, an increase of 3.5 percent year-on-year. Over the past decade, coal’s share of the energy mix has gradually declined while the contribution of renewable and other clean energy sources has expanded.

China’s reliance on imported crude oil remains substantial. Estimates generally place crude import dependence at above 70 percent of domestic consumption. Much of this supply arrives via maritime routes, making shipping lanes a critical element of China’s energy security.

For this reason, China’s energy policy has focused on three main buffers: maintaining strategic oil reserves, diversifying crude suppliers, and accelerating electrification across the domestic energy system. Together, these measures aim to reduce the impact of external supply disruptions.

The Gulf chokepoint problem persists

Even with diversified suppliers, China’s oil supply remains heavily dependent on key maritime corridors.

The Strait of Hormuz is the most important of these routes. In 2025, roughly 15 million barrels per day of crude oil (around 34 percent of global seaborne crude trade) passed through the strait. Most of these shipments were destined for Asian markets, with China and India together accounting for approximately 44 percent of the exports. For China, the core vulnerability lies not in dependence on any single producer, but in reliance on a limited number of transport corridors.

Research by the Columbia Center on Global Energy Policy estimates that roughly half of China’s crude oil imports and nearly one-third of its liquefied natural gas imports originate in the Middle East. Much of this energy supply normally travels through the Strait of Hormuz before reaching Asian markets.

Stockpiles are large, but definitions matter

China has spent more than a decade building up strategic petroleum reserves as a buffer against supply disruptions. However, the exact size of these reserves remains opaque.

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Official data on strategic reserves are rarely disclosed. According to Reuters reporting, analysts estimate China’s strategic petroleum reserves at roughly 900 million barrels, equivalent to just under three months of imports. When broader measures of oil storage are considered, the available buffer appears larger. These estimates include commercial inventories held by refiners and oil stored in bonded facilities.

Some analyses estimate that China’s total oil storage capacity could reach approximately 1.39 billion barrels, enough to cover around 120 days of net imports based on current consumption levels. Similarly, the Peterson Institute for International Economics places combined strategic and commercial reserves at roughly 1.3 to 1.4 billion barrels, equivalent to about four months of imports.

Electrification is now a material macro-buffer

China’s rapid electrification is gradually reducing its exposure to oil price shocks, particularly in the transportation sector.

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Electric vehicles (EVs) are now a major component of China’s automotive market. Domestic data indicate that new energy vehicles (NEVs) accounted for 50.8 percent of vehicle sales in 2025, with an even higher share among passenger cars. This shift reduces the number of households directly affected by fluctuations in gasoline prices and lowers the overall sensitivity of the economy to retail fuel price increases.

However, electrification does not eliminate oil’s importance for the industrial economy.

Petroleum products remain essential for:

• Aviation fuel;
• Maritime transport;
• Diesel-powered freight logistics; and
• Petrochemical production.

In these sectors, alternatives remain limited and price increases are transmitted quickly into production costs.

Oil import structure and transport routes

China’s crude imports reached record levels in 2025, averaging roughly 11.55 to 11.6 million barrels per day according to widely cited estimates. Import volumes also increased in early 2026 as refiners maintained high processing rates and continued building inventories.

Transport mode is itself a risk amplifier: Columbia CGEP notes that more than 90 percent of China’s crude imports are seaborne. Pipeline imports provide some diversification, particularly through supply routes from Russia and Central Asia. These flows help stabilize supply but remain relatively small compared to China’s total import demand.

While China’s crude suppliers are diversified, the transport routes through which that oil reaches Asia remain far more concentrated. For companies, this means risk assessments should not focus solely on the loss of a specific supplier. Disruptions to major shipping corridors can have similar effects, increasing freight costs, insurance premiums, and delivery timesm, even when crude remains available from alternative producers. In practice, route disruptions can therefore translate quickly into higher feedstock costs and tighter supply conditions across energy-intensive industries.

Transmission channels into the domestic economy

Domestic fuel prices and pass-through

China’s retail fuel pricing system plays an important role in moderating the domestic impact of global oil price volatility. Under the current mechanism, gasoline and diesel ceiling prices are adjusted every 10 working days based on changes in a basket of international crude benchmarks, with built-in thresholds and discretionary adjustments under exceptional circumstances.

In March and again in early April, the NDRC moderated the transmission of higher international oil prices by raising regulated gasoline and diesel ceilings by roughly half the increase implied by the formula. For example, the early-April adjustment raised gasoline prices by RMB 420 (US$61.25) per ton and diesel by RMB 400 (US$58.33) per ton, substantially lower than the scheduled increases.

Such interventions help limit short-term inflationary pressure on households and businesses. However, they also shift part of the burden elsewhere in the system. Refining margins can be compressed, while the government may rely on additional policy tools such as export management, quota adjustments, and other fiscal or quasi-fiscal measures to stabilize supply.

In this sense, the impact of rising oil prices in China is partly mediated through policy decisions rather than purely market-driven outcomes.

Manufacturing margins and “bad inflation” risk

Even in an environment where overall inflation remains subdued, higher energy prices can still affect the economy through cost pressures.

Energy and transportation costs are deeply embedded in China’s manufacturing supply chain. As a result, increases in oil prices can translate into higher production costs across a wide range of industries, from chemicals and metals to machinery and electronics. Economists have described this dynamic as a risk of “bad inflation” (a situation in which rising input costs squeeze already thin profit margins without corresponding increases in demand).

Recent economic indicators suggest that such pressures may already be emerging. China’s official manufacturing PMI returned to expansion territory in March, reaching 50.4. However, the input price index rose to 52.3, indicating that manufacturers are facing rising cost pressures even as output conditions stabilize. For China’s industrial sector, the key risk is therefore not necessarily declining production but tightening margins.

Petrochemicals feedstock risk and refinery economics

China’s petrochemical sector faces a particularly complex set of risks from disruptions in oil markets. First, crude oil prices directly influence feedstock costs for petrochemical production. Second, disruptions in shipping routes or tanker availability can affect access to specific crude grades (such as naphtha-rich crudes and condensates) that are essential for certain downstream processes. China’s independent refining sector is a critical component of this system. Often referred to as “teapot” refiners, these facilities, many located in Shandong province, account for roughly a quarter of the country’s total refining capacity and play a key role in processing discounted crude supplies.

In the early phase of the disruption, Reuters reported that many independent refiners maintained high processing rates in order to capture stronger domestic fuel margins. Some were able to do so because they had previously secured discounted crude supplies.

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However, analysts warned that rising replacement costs and declining inventories could eventually force refiners to cut operating rates if margins continue to deteriorate. By early April, reports indicated that weak domestic fuel demand and rising refining losses, averaging around RMB 143 (US$20.85) per ton in March, were already creating pressure across the sector. At the same time, some independent refiners reportedly renewed interest in Iranian crude supplies after prices softened.

The Chinese government has responded by encouraging refiners to maintain stable processing levels and by adjusting crude import quotas. Authorities demanded urged independent refiners to keep run rates close to their two-year average and issued new import quotas totaling roughly 55 million metric tons.

Aviation, freight and insurance costs

Aviation is the clearest sectoral transmission mechanism because jet fuel has few substitutes and is globally traded. Airlines have raised fuel surcharges and that jet fuel supply normalisation could take months even if flows resume, given refining disruptions and logistics constraints.

Freight and insurance costs reinforce the shock. Vortexa’s March Report highlights the mechanics of disrupted tanker logistics (shadow fleet concentration, queueing outside the corridor, and the build-up of floating buffers) which raises effective delivered costs and uncertainty for refiners.

External demand shock and export exposure

For China’s broader economic outlook, the most significant risk may not come from domestic fuel supply but from weaker global demand. Higher global energy prices can slow economic growth in major trading partners. If this occurs, demand for Chinese exports may decline, creating additional pressure on industrial output and corporate profitability.

Analysis associated with Alicia García-Herrero at the Peterson Institute for International Economics highlights the importance of Europe in this context. The European Union absorbs roughly 15 percent of Chinese exports, meaning that an energy-driven slowdown in Europe would quickly feed back into China’s export sector.

Recent trade data suggest that Chinese firms may already be preparing for such risks. While trade volumes remained strong in early 2026, imports rose significantly faster than processing needs, suggesting that refiners and industrial firms were building precautionary inventories.

Scenario analysis

The possible economic impact depends largely on how long disruptions persist. Three broad scenarios can be considered.

Timeline of key events and policy moves

The following timeline captures the key inflection points relevant to business readers (dates are drawn from cited releases and reporting).

Implications and recommendations for businesses

Companies operating in China or relying on Chinese supply chains should consider several risk management strategies.

• First, procurement diversification should include both suppliers and transport routes. Switching crude suppliers may not be sufficient if shipping disruptions raise freight costs or insurance premiums.
• Second, inventory and contract strategies should account for policy smoothing in China’s domestic fuel market. Because domestic prices may lag global benchmarks, firms may need to rely more heavily on hedging strategies and inventory buffers.
• Third, sectors reliant on jet fuel, diesel, or petrochemical feedstocks should plan for supply tightness to persist longer than crude price volatility itself.

Even if global oil benchmarks decline, refined product markets may remain tight due to refinery constraints, shipping delays, and logistical bottlenecks.

With the region’s rapid economic growth and diverse regulatory environments, businesses must navigate shifting costs, complex compliance frameworks, and conflicting information. Our professionals support investors with actionable data on Asia’s industrial landscape, location analysis, supply chain diversification, and market entry strategy. We also offer business partner matching services and assist in identifying optimal investment destinations through cross-country competitiveness benchmarking.

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Co-Head of Business Intelligence

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