China Leads Global Sulphuric Acid Exports in 2025

Walking through the bustling corridors of downtown Des Moines or driving past the endless stretches of corn and soybean fields that define Polk County, It’s easy to sense insulated from the geopolitical tremors of the Middle East or the administrative shifts in Beijing. Though, for the agricultural heartland of Iowa, the distance between the Strait of Hormuz and the soil of the American Midwest is shorter than most realize. A sudden shift in Chinese trade policy, coupled with escalating tensions between the United States and Iran, is creating a ripple effect that could land squarely on the doorsteps of Iowa’s farming operations and agribusinesses.

The Beijing Pivot: Why Sulfuric Acid Matters Now

Recent reports from Acuity Commodities and Bloomberg have signaled a looming crisis in the global chemical supply chain. Beijing has indicated a plan to halt the export of sulfuric acid starting in May 2026. While an official government announcement has yet to be released, Lynn Song, the chief economist for Greater China at ING, suggests that “administrative controls” will likely result in a de facto suspension of these exports. For a city like Des Moines, which serves as a hub for agricultural finance and management, this isn’t just a trade statistic—it is a potential catalyst for skyrocketing input costs.

To understand the gravity of this move, one has to look at the sheer scale of China’s dominance in this sector. In 2025, China stood as the world’s largest exporter of sulfuric acid, with total exports valued at US$290 million according to the Observatory of Economic Complexity. This dominance was further evidenced in 2024, when China held the largest trade surplus in sulfuric acid and oleum globally, totaling $340 million, far outpacing other major players like Canada ($200 million) and Japan ($191 million). When the world’s primary supplier decides to keep its product home, the global market doesn’t just dip—it destabilizes.

The Geopolitical Trigger: Iran and the Strait of Hormuz

The decision by Beijing to prioritize domestic supply is not happening in a vacuum. The failure of peace talks over the weekend between the United States and Iran has exacerbated fears regarding the stability of the Strait of Hormuz. This narrow waterway is a critical choke point for global trade, accounting for approximately one-third of all seaborne fertilizer trade and a significant portion of global sulfur exports. With the strait blocked or threatened, the supply of sulfur—the raw material needed to produce sulfuric acid—has become precarious.

For the Chinese government, the calculation is simple: food security outweighs export revenue. The contribution of sulfuric acid exports to China’s gross domestic product is negligible compared to the systemic risk of a domestic fertilizer shortage. By halting exports to traditional destinations like India, Morocco, Saudi Arabia, Indonesia, and Chile, Beijing is essentially stockpiling resources to ensure its own crops don’t fail. This “me-first” approach to food security creates a vacuum that will inevitably drive prices higher for everyone else, including the producers who rely on phosphate fertilizers, which require sulfuric acid for production.

Second-Order Effects on the Iowa Economy

In Des Moines, the impact of this supply shock will likely be felt first in the pricing of fertilizers. As global supply chains disrupt, the cost of producing phosphorus-based fertilizers rises. This creates a cascading effect: higher costs for the cooperatives, which lead to higher prices for the farmer, which eventually translates to higher grocery bills for residents shopping along the East Village or near the Iowa State Fairgrounds. The US Department of Agriculture and the Iowa Department of Agriculture and Land Stewardship will likely be monitoring these trends closely, as any significant spike in input costs can threaten the narrow margins of family-owned farms.

the volatility in the chemical market often leads to broader economic instability. When essential chemicals like sulfuric acid become scarce, it isn’t just farming that suffers. mining and other industrial processes are too hit. While Iowa is primarily agricultural, the regional logistics networks—including the heavy rail and trucking traffic moving through the I-80 and I-35 corridors—depend on a stable industrial base. A global shortage of a foundational chemical can lead to production delays in diverse sectors, affecting everything from battery manufacturing to mineral processing.

As we look toward May 2026, the window for preparation is closing. The combination of a “de facto suspension” from China and the volatility of the Middle East means that the era of cheap, reliable chemical imports is facing a severe test. For those in the Des Moines area involved in ag-tech or commodity trading, the focus must now shift toward diversification and efficiency to mitigate the coming price shocks.

Navigating the Crisis: Local Professional Guidance

Given my background in geo-journalism and economic analysis, I recognize that global macro-trends can feel overwhelming when they hit the local level. If these supply chain disruptions begin to impact your operation or your investment portfolio here in the Des Moines area, you cannot rely on general advice. You require specialized expertise to navigate the intersection of international trade and local production.

Depending on your specific needs, here are the three types of local professionals you should engage to protect your interests:

Precision Agronomy Consultants

With fertilizer costs poised to rise, the goal is no longer just “more” yield, but “efficient” yield. Look for consultants who specialize in variable-rate application and soil nutrient mapping. The ideal professional should have a proven track record of reducing synthetic input reliance without sacrificing crop output, utilizing data-driven insights to apply chemicals only where absolutely necessary.

Agribusiness Commodity Strategists

When global markets shift due to geopolitical events like the Iran-US tensions, hedging becomes essential. You need a strategist who understands the correlation between sulfur exports and fertilizer futures. Seek out professionals with experience in commodity hedging and those who can provide real-time analysis of trade data from sources like the Observatory of Economic Complexity to anticipate price pivots.

Supply Chain Diversification Experts

Relying on a single geographical source for inputs is now a high-risk strategy. Look for logistics experts who specialize in “friend-shoring” or identifying alternative suppliers in stable regions (such as Canada or Japan, which also maintain trade surpluses in sulfuric acid). The right expert should be able to audit your current supply chain and identify vulnerabilities before the May export halt takes full effect.

Ready to find trusted professionals? Browse our complete directory of top-rated agricultural consultants experts in the Des Moines area today.